{"id":"CVE-2022-3602","aliases":["ALPINE-CVE-2022-3602","ALSA-2022:7288","BELL-CVE-2022-3602","BIT-node-2022-3602","BIT-node-min-2022-3602","DEBIAN-CVE-2022-3602","EUVD-2022-7287","GHSA-8rwr-x37p-mx23","RHSA-2022:7288","RLSA-2022:7288","RUSTSEC-2022-0064","SUSE-SU-2022:3843-1","UBUNTU-CVE-2022-3602","USN-5710-1","openSUSE-SU-2024:12469-1","openSUSE-SU-2024:12475-1","openSUSE-SU-2024:12479-1","openSUSE-SU-2024:12480-1","openSUSE-SU-2024:12575-1","openSUSE-SU-2025:14739-1","openSUSE-SU-2025:14740-1","openSUSE-SU-2025:14762-1"],"status":"published","title":"X.509 Email Address 4-byte Buffer Overflow","description":"A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6).","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.9077,"percentile":0.99806,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-120","CWE-787"],"published":"2022-11-01T00:00:00Z","modified":"2026-11-03T08:01:32Z","exploits":[{"source":"pocgithub","id":"NCSC-NL/OpenSSL-2022","title":"NCSC-NL/OpenSSL-2022","date":"2022-10-28","url":"https://github.com/NCSC-NL/OpenSSL-2022"},{"source":"pocgithub","id":"colmmacc/CVE-2022-3602","title":"colmmacc/CVE-2022-3602","date":"2022-10-30","url":"https://github.com/colmmacc/CVE-2022-3602"},{"source":"pocgithub","id":"eatscrayon/CVE-2022-3602-poc","title":"eatscrayon/CVE-2022-3602-poc","date":"2022-10-31","url":"https://github.com/eatscrayon/CVE-2022-3602-poc"},{"source":"pocgithub","id":"attilaszia/cve-2022-3602","title":"attilaszia/cve-2022-3602","date":"2022-11-01","url":"https://github.com/attilaszia/cve-2022-3602"},{"source":"pocgithub","id":"alicangnll/SpookySSL-Scanner","title":"alicangnll/SpookySSL-Scanner","date":"2022-11-02","url":"https://github.com/alicangnll/SpookySSL-Scanner"},{"source":"pocgithub","id":"rbowes-r7/cve-2022-3602-and-cve-2022-3786-openssl-poc","title":"rbowes-r7/cve-2022-3602-and-cve-2022-3786-openssl-poc","date":"2022-11-02","url":"https://github.com/rbowes-r7/cve-2022-3602-and-cve-2022-3786-openssl-poc"},{"source":"pocgithub","id":"corelight/CVE-2022-3602","title":"corelight/CVE-2022-3602","date":"2022-11-03","url":"https://github.com/corelight/CVE-2022-3602"},{"source":"pocgithub","id":"cybersecurityworks553/CVE-2022-3602-and-CVE-2022-3786","title":"cybersecurityworks553/CVE-2022-3602-and-CVE-2022-3786","date":"2022-11-07","url":"https://github.com/cybersecurityworks553/CVE-2022-3602-and-CVE-2022-3786"}],"fixes":[{"ecosystem":"crates.io","package":"openssl-src","fixed_in":["300.0.11"],"sources":["ghsa","osv"]},{"ecosystem":"Alpine:v3.17","package":"nodejs","fixed_in":["18.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"nodejs","fixed_in":["18.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"nodejs","fixed_in":["18.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"nodejs","fixed_in":["18.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"nodejs","fixed_in":["18.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"nodejs","fixed_in":["18.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"nodejs","fixed_in":["18.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"nodejs","fixed_in":["18.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"openssl","fixed_in":["3.0.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"openssl","fixed_in":["3.0.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"openssl","fixed_in":["3.0.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"openssl","fixed_in":["3.0.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"openssl","fixed_in":["3.0.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"openssl","fixed_in":["3.0.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"openssl","fixed_in":["3.0.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"openssl","fixed_in":["3.0.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"openssl3","fixed_in":["3.0.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"openssl3","fixed_in":["3.0.7-r0"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"node","fixed_in":["18.11.0","18.12.1","19.0.1"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"node-min","fixed_in":["18.11.0","18.12.1","19.0.1"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"openssl","fixed_in":["3.0.7-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"openssl","fixed_in":["3.0.7-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"openssl","fixed_in":["3.0.7-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:22.04:LTS","package":"openssl","fixed_in":["3.0.2-0ubuntu1.7"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"openssl-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"300.0.0"},{"fixed":"300.0.11"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"nodejs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.12.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"nodejs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.12.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"nodejs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.12.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"nodejs","ranges":[{"type":"ECOSYSTEM","events":[{"intro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Advisory","advisory","article","web"]},{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00789.html","tags":["web","advisory"]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-408105.html","tags":["web"]},{"url":"https://github.com/rustsec/advisory-db/pull/1452","tags":["web"]},{"url":"https://github.com/alexcrichton/openssl-src-rs/commit/4a31c14f31e1a08c18893a37e304dd1dd4b7daa3","tags":["web"]},{"url":"https://rustsec.org/advisories/RUSTSEC-2022-0064.html","tags":["web","advisory"]},{"url":"https://github.com/openssl/openssl/commit/fe3b639dc19b325846f4f6801f2f4604f56e3de3","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-3602","tags":["web","advisory"]},{"url":"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fe3b639dc19b325846f4f6801f2f4604f56e3de3","tags":["web"]},{"url":"https://security.netapp.com/advisory/ntap-20221102-0001","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DWP23EZYOBDJQP7HP4YU7W2ABU2YDITS","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/63YRPWPUSX3MBHNPIEJZDKQT6YA7UF6S","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DWP23EZYOBDJQP7HP4YU7W2ABU2YDITS","tags":["web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/63YRPWPUSX3MBHNPIEJZDKQT6YA7UF6S","tags":["web"]},{"url":"https://github.com/advisories/GHSA-8rwr-x37p-mx23"},{"url":"https://security.alpinelinux.org/vuln/CVE-2022-3602","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2022:7288","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-3602","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-3786","tags":["report"]},{"url":"https://bugzilla.redhat.com/2137723","tags":["report"]},{"url":"https://bugzilla.redhat.com/2139104","tags":["report"]},{"url":"https://errata.almalinux.org/9/ALSA-2022-7288.html","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2022-3602","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/3xxx/CVE-2022-3602.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2022-3602","tags":["advisory"]},{"url":"https://github.com/alexcrichton/openssl-src-rs","tags":["package"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://access.redhat.com/security/vulnerabilities/RHSB-2022-004","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2137723","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2139104","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_7288.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-3602","tags":["advisory","report"]},{"url":"https://www.openssl.org/blog/blog/2022/11/01/email-address-overflows/","tags":["article"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-3786","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-3786","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2022:7288","tags":["advisory"]},{"url":"https://crates.io/crates/openssl-src","tags":["package"]},{"url":"https://www.suse.com/support/update/announcement/2022/suse-su-20223843-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1204226","tags":["report"]},{"url":"https://bugzilla.suse.com/1204714","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2022-3358","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-3602","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-3786","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2022-3602","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-5710-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-3358","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-3786","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2022-36086","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-23931","tags":["web"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/BYRT4L3ZDCZCJBPH7KDKJTBG4Z4CVCQS/","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2022-24766","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-23217","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2022-3602","title":"X.509 Email Address 4-byte Buffer Overflow","description":"A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6).","status":"published","published":"2022-11-01T00:00:00Z","modified":"2026-04-14T08:58:02.339Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:34:32.843656Z"}],"euvd":[{"id":"EUVD-2022-7287","description":"A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6).","status":"published","published":"2022-11-01T00:00:00Z","modified":"2026-04-14T08:58:02Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T19:24:27.052992Z"}],"ghsa":[{"id":"GHSA-8rwr-x37p-mx23","title":"X.509 Email Address 4-byte Buffer Overflow","description":"A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs\nafter certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to\ncontinue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address\nto overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or\npotentially remote code execution.\n\nMany platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler.\n\nPre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible.\n\nIn a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.","status":"published","published":"2022-11-01T17:45:59Z","modified":"2025-11-04T22:07:43Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-120","CWE-787"],"updated_at":"2026-11-02T14:39:06.376137Z"}],"nvd":[{"id":"CVE-2022-3602","description":"A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6).","status":"published","published":"2022-11-01T18:15:10.983Z","modified":"2026-06-17T04:59:49.62Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:31.504574Z"}],"osv":[{"id":"ALPINE-CVE-2022-3602","description":"A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6).","status":"published","published":"2022-11-01T18:15:10.983Z","modified":"2026-11-03T07:18:33.490227194Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T07:51:12.284675Z"},{"id":"BELL-CVE-2022-3602","title":"CVE-2022-3602 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:13:56.527314Z","modified":"2026-02-18T07:38:27.264894Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:17.151188Z"},{"id":"CVE-2022-3602","title":"X.509 Email Address 4-byte Buffer Overflow","description":"A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6).","status":"published","published":"2022-11-01T00:00:00Z","modified":"2026-10-28T02:30:26.448176386Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:26.195407Z"},{"id":"DEBIAN-CVE-2022-3602","description":"A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6).","status":"published","published":"2022-11-01T18:15:10.983Z","modified":"2026-11-03T08:01:32.300383748Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T08:25:01.007408Z"},{"id":"GHSA-8rwr-x37p-mx23","title":"X.509 Email Address 4-byte Buffer Overflow","description":"A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs\nafter certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to\ncontinue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address\nto overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or\npotentially remote code execution.\n\nMany platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler.\n\nPre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible.\n\nIn a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.","status":"published","published":"2022-11-01T17:45:59Z","modified":"2026-09-10T03:49:47.099289115Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-120","CWE-787"],"updated_at":"2026-11-02T15:46:42.78452Z"},{"id":"RHSA-2022:7288","title":"Red Hat Security Advisory: openssl security update","status":"published","published":"2024-09-16T09:20:38Z","modified":"2026-08-05T10:12:44Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:10.139266Z"},{"id":"RLSA-2022:7288","title":"Important: openssl security update","description":"OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full strength general purpose cryptography library.\n\nSecurity Fix(es):\n\n* OpenSSL: X.509 Email Address Buffer Overflow (CVE-2022-3602)\n\n* OpenSSL: X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2022-11-01T18:25:07Z","modified":"2026-02-05T12:15:07.109948Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:24.322216Z"},{"id":"UBUNTU-CVE-2022-3602","description":"A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6).","status":"published","published":"2022-11-01T00:00:00Z","modified":"2026-04-22T13:26:00.191536Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:53:54.697021Z"},{"id":"ALSA-2022:7288","title":"Important: openssl security update","description":"OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full strength general purpose cryptography library.\n\nSecurity Fix(es):\n\n* OpenSSL: X.509 Email Address Buffer Overflow (CVE-2022-3602)\n* OpenSSL: X.509 Email Address Variable Length Buffer Overflow (CVE-2022-3786)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2022-11-01T00:00:00Z","modified":"2026-10-29T11:31:14.964564755Z","updated_at":"2026-11-02T15:27:51.655726Z"},{"id":"BIT-node-2022-3602","title":"X.509 Email Address 4-byte Buffer Overflow","description":"A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6).","status":"published","published":"2024-03-06T11:02:52.601Z","modified":"2026-10-16T09:45:21.972401147Z","updated_at":"2026-11-02T15:28:34.007508Z"},{"id":"BIT-node-min-2022-3602","title":"X.509 Email Address 4-byte Buffer Overflow","description":"A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6).","status":"published","published":"2024-12-16T14:01:20.33Z","modified":"2026-10-16T09:45:30.956778392Z","updated_at":"2026-11-02T15:28:34.007508Z"},{"id":"openSUSE-SU-2024:12469-1","title":"cargo-audit-advisory-db-20221102-1.1 on GA media","description":"These are all security issues fixed in the cargo-audit-advisory-db-20221102-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:16:46.278292Z","updated_at":"2026-11-02T16:58:35.751245Z"},{"id":"openSUSE-SU-2024:12475-1","title":"libopenssl-3-devel-3.0.7-1.1 on GA media","description":"These are all security issues fixed in the libopenssl-3-devel-3.0.7-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:30:17.063132Z","updated_at":"2026-11-02T16:58:35.751245Z"},{"id":"openSUSE-SU-2024:12479-1","title":"python310-cryptography-38.0.3-1.1 on GA media","description":"These are all security issues fixed in the python310-cryptography-38.0.3-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:13:16.611165Z","updated_at":"2026-11-02T16:58:35.751245Z"},{"id":"openSUSE-SU-2024:12480-1","title":"python310-cryptography-vectors-38.0.3-1.1 on GA media","description":"These are all security issues fixed in the python310-cryptography-vectors-38.0.3-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:09:29.272647Z","updated_at":"2026-11-02T16:58:35.751245Z"},{"id":"openSUSE-SU-2024:12575-1","title":"python310-mitmproxy-9.0.1-1.1 on GA media","description":"These are all security issues fixed in the python310-mitmproxy-9.0.1-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:38:17.061422Z","updated_at":"2026-11-02T16:58:35.751245Z"},{"id":"openSUSE-SU-2025:14739-1","title":"python311-cryptography-44.0.0-1.1 on GA media","description":"These are all security issues fixed in the python311-cryptography-44.0.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-02-06T00:00:00Z","modified":"2026-02-04T02:37:19.74427Z","updated_at":"2026-11-02T16:58:36.976155Z"},{"id":"openSUSE-SU-2025:14740-1","title":"python311-cryptography-vectors-44.0.0-1.1 on GA media","description":"These are all security issues fixed in the python311-cryptography-vectors-44.0.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-02-06T00:00:00Z","modified":"2026-02-04T03:44:18.055894Z","updated_at":"2026-11-02T16:58:36.976155Z"},{"id":"openSUSE-SU-2025:14762-1","title":"python312-mitmproxy-11.1.2-1.1 on GA media","description":"These are all security issues fixed in the python312-mitmproxy-11.1.2-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-02-10T00:00:00Z","modified":"2026-02-04T03:22:25.216444Z","updated_at":"2026-11-02T16:58:36.976155Z"},{"id":"RUSTSEC-2022-0064","title":"X.509 Email Address 4-byte Buffer Overflow","description":"A buffer overrun can be triggered in X.509 certificate verification,\nspecifically in name constraint checking. Note that this occurs\nafter certificate chain signature verification and requires either a\nCA to have signed the malicious certificate or for the application to\ncontinue certificate verification despite failure to construct a path\nto a trusted issuer. An attacker can craft a malicious email address\nto overflow four attacker-controlled bytes on the stack. This buffer\noverflow could result in a crash (causing a denial of service) or\npotentially remote code execution.\n\nMany platforms implement stack overflow protections which would mitigate\nagainst the risk of remote code execution. The risk may be further\nmitigated based on stack layout for any given platform/compiler.\n\nPre-announcements of CVE-2022-3602 described this issue as CRITICAL.\nFurther analysis based on some of the mitigating factors described above\nhave led this to be downgraded to HIGH. Users are still encouraged to\nupgrade to a new version as soon as possible.\n\nIn a TLS client, this can be triggered by connecting to a malicious\nserver. In a TLS server, this can be triggered if the server requests\nclient authentication and a malicious client connects.","status":"published","published":"2022-11-01T12:00:00Z","modified":"2024-12-16T15:27:10.96822Z","updated_at":"2026-11-02T15:53:39.971022Z"},{"id":"SUSE-SU-2022:3843-1","title":"Security update for openssl-3","description":"This update for openssl-3 fixes the following issues:\n\n- CVE-2022-3358: Fixed vulnerability where a custom cipher passed to EVP_CipherInit() could lead into NULL encryption being unexpectedly used (bsc#1204226).\n- CVE-2022-3602: Fixed a buffer overflow in the X.509 email address. (bsc#1204714)\n- CVE-2022-3786: Fixed another buffer overflow related to X.509 email address. (bsc#1204714)\n","status":"published","published":"2022-11-01T16:40:22Z","modified":"2026-02-04T04:10:49.982797Z","updated_at":"2026-11-02T15:53:51.440565Z"},{"id":"USN-5710-1","title":"openssl vulnerabilities","description":"It was discovered that OpenSSL incorrectly handled certain X.509 Email\nAddresses. If a certificate authority were tricked into signing a\nspecially-crafted certificate, a remote attacker could possibly use this\nissue to cause OpenSSL to crash, resulting in a denial of service. The\ndefault compiler options for affected releases reduce the vulnerability to\na denial of service. (CVE-2022-3602, CVE-2022-3786)\n\nIt was discovered that OpenSSL incorrectly handled applications creating\ncustom ciphers via the legacy EVP_CIPHER_meth_new() function. This issue\ncould cause certain applications that mishandled values to the function to\npossibly end up with a NULL cipher and messages in plaintext.\n(CVE-2022-3358)\n","status":"published","published":"2022-11-01T16:24:36Z","modified":"2026-04-27T16:32:25.316143292Z","updated_at":"2026-11-02T16:58:16.20937Z"}]}}