{"id":"CVE-2023-25076","aliases":["DEBIAN-CVE-2023-25076","DLA-3406-1","DSA-5413-1","EUVD-2023-29055","GHSA-fhgm-rvpq-xwx9","MGASA-2023-0178","UBUNTU-CVE-2023-25076","USN-6148-1"],"status":"published","title":"A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6...","description":"A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6.0-2 and the master branch (commit: 822bb80df9b7b345cc9eba55df74a07b498819ba). A specially crafted HTTP or TLS packet can lead to arbitrary code execution. An attacker could send a malicious packet to trigger this vulnerability.","severity":{"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","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.65753,"percentile":0.99277,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-120"],"published":"2023-03-30T14:34:10Z","modified":"2026-10-28T10:31:56Z","fixes":[{"ecosystem":"Debian:12","package":"sniproxy","fixed_in":["0.6.0-2.1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"sniproxy","fixed_in":["0.6.0-2.1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"sniproxy","fixed_in":["0.6.0-2.1"],"sources":["osv"]},{"ecosystem":"Debian:10","package":"sniproxy","fixed_in":["0.6.0-1+deb10u1"],"sources":["osv"]},{"ecosystem":"Debian:11","package":"sniproxy","fixed_in":["0.6.0-2+deb11u1"],"sources":["osv"]},{"ecosystem":"Mageia:8","package":"sniproxy","fixed_in":["0.6.1-1.mga8"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"sniproxy","fixed_in":["0.5.0-2ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"sniproxy","fixed_in":["0.6.0-1ubuntu0.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:22.04:LTS","package":"sniproxy","fixed_in":["0.6.0-2ubuntu0.22.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:24.04:LTS","package":"sniproxy","fixed_in":["0.6.0-2.1build2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"sniproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.0-2.1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"sniproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.0-2.1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"sniproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.0-2.1"}]}]},{"source":"osv","ecosystem":"Debian:10","package":"sniproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.0-1+deb10u1"}]}],"versions":["0.6.0-1"]},{"source":"osv","ecosystem":"Debian:11","package":"sniproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.0-2+deb11u1"}]}],"versions":["0.6.0-2"]},{"source":"osv","ecosystem":"Mageia:8","package":"sniproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.1-1.mga8"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"sniproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.0-2ubuntu0.1~esm1"}]}],"versions":["0.5.0-2"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"sniproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.0-1ubuntu0.1"}]}],"versions":["0.6.0-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"sniproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.0-2ubuntu0.22.04.1"}]}],"versions":["0.6.0-2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"sniproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.0-2.1build2"}]}],"versions":["0.6.0-2.1","0.6.0-2.1build1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"sniproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5.0-2ubuntu0.1~esm1"}]}],"versions":["0.5.0-2"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"sniproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.0-1ubuntu0.1"}]}],"versions":["0.6.0-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"sniproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.0-2ubuntu0.22.04.1"}]}],"versions":["0.6.0-2"]}],"products":[{"vendor":"sniproxy","product":"sniproxy"},{"vendor":"sniproxy_project","product":"sniproxy"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1731","tags":["x_transferred","Exploit","Mitigation","Third Party Advisory","web","report"]},{"url":"https://github.com/dlundquist/sniproxy/commit/f8d9a433fe22ab2fa15c00179048ab02ae23d583","tags":["x_transferred","Patch","fix","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/04/msg00030.html","tags":["x_transferred","web"]},{"url":"https://www.debian.org/security/2023/dsa-5413","tags":["x_transferred","advisory"]},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1731","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-25076","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-fhgm-rvpq-xwx9"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/25xxx/CVE-2023-25076.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-25076","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2023-0178.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=31879","tags":["report"]},{"url":"https://www.debian.org/lts/security/2023/dla-3406","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2023-25076","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-6148-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-25076","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-25076","description":"A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6.0-2 and the master branch (commit: 822bb80df9b7b345cc9eba55df74a07b498819ba). A specially crafted HTTP or TLS packet can lead to arbitrary code execution. An attacker could send a malicious packet to trigger this vulnerability.","status":"published","published":"2023-03-30T14:34:10.414Z","modified":"2025-03-05T19:10:41.102Z","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","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:35:19.559321Z"}],"euvd":[{"id":"EUVD-2023-29055","description":"A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6.0-2 and the master branch (commit: 822bb80df9b7b345cc9eba55df74a07b498819ba). A specially crafted HTTP or TLS packet can lead to arbitrary code execution. An attacker could send a malicious packet to trigger this vulnerability.","status":"published","published":"2023-03-30T14:34:10Z","modified":"2025-03-05T19:10:41Z","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"}],"updated_at":"2026-11-02T20:53:12.801571Z"}],"ghsa":[{"id":"GHSA-fhgm-rvpq-xwx9","title":"A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6...","description":"A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6.0-2 and the master branch (commit: 822bb80df9b7b345cc9eba55df74a07b498819ba). A specially crafted HTTP, TLS or DTLS packet can lead to arbitrary code execution. An attacker could send a malicious packet to trigger this vulnerability.","status":"published","published":"2023-03-30T15:30:19Z","modified":"2023-06-05T05:01:20Z","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"],"updated_at":"2026-11-02T14:54:38.286464Z"}],"nvd":[{"id":"CVE-2023-25076","description":"A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6.0-2 and the master branch (commit: 822bb80df9b7b345cc9eba55df74a07b498819ba). A specially crafted HTTP or TLS packet can lead to arbitrary code execution. An attacker could send a malicious packet to trigger this vulnerability.","status":"published","published":"2023-03-30T15:15:07.37Z","modified":"2026-06-17T05:40:37.68Z","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","assessor":"secondary"},{"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","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:07:51.883939Z"}],"osv":[{"id":"CVE-2023-25076","description":"A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6.0-2 and the master branch (commit: 822bb80df9b7b345cc9eba55df74a07b498819ba). A specially crafted HTTP or TLS packet can lead to arbitrary code execution. An attacker could send a malicious packet to trigger this vulnerability.","status":"published","published":"2023-03-30T14:34:10.414Z","modified":"2026-10-28T10:31:56.784957767Z","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"],"updated_at":"2026-11-02T15:44:30.709518Z"},{"id":"DEBIAN-CVE-2023-25076","description":"A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6.0-2 and the master branch (commit: 822bb80df9b7b345cc9eba55df74a07b498819ba). A specially crafted HTTP or TLS packet can lead to arbitrary code execution. An attacker could send a malicious packet to trigger this vulnerability.","status":"published","published":"2023-03-30T15:15:07.37Z","modified":"2026-10-26T18:02:10.40865875Z","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"}],"updated_at":"2026-11-02T15:45:39.369204Z"},{"id":"UBUNTU-CVE-2023-25076","description":"A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6.0-2 and the master branch (commit: 822bb80df9b7b345cc9eba55df74a07b498819ba). A specially crafted HTTP or TLS packet can lead to arbitrary code execution. An attacker could send a malicious packet to trigger this vulnerability.","status":"published","published":"2023-03-30T15:15:00Z","modified":"2026-02-04T03:12:12.539642Z","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"},{"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"}],"updated_at":"2026-11-02T16:54:20.198616Z"},{"id":"DLA-3406-1","title":"sniproxy - security update","status":"published","published":"2023-04-30T00:00:00Z","modified":"2026-03-09T01:20:22.247286Z","updated_at":"2026-11-02T15:46:11.734021Z"},{"id":"DSA-5413-1","title":"sniproxy - security update","status":"published","published":"2023-05-26T00:00:00Z","modified":"2026-03-09T02:10:47.023428Z","updated_at":"2026-11-02T15:46:17.543497Z"},{"id":"MGASA-2023-0178","title":"Updated sniproxy packages fix security vulnerability","description":"A buffer overflow vulnerability exists in the handling of wildcard backend\nhosts of SNIProxy. A specially crafted HTTP or TLS packet can lead to\narbitrary code execution. An attacker could send a malicious packet to\ntrigger this vulnerability. (CVE-2023-25076)\n","status":"published","published":"2023-05-21T08:42:44Z","modified":"2026-04-16T04:40:54.304060554Z","updated_at":"2026-11-02T15:49:42.263076Z"},{"id":"USN-6148-1","title":"sniproxy vulnerability","description":"It was discovered that SNI Proxy did not properly handle wildcard backend\nhosts. An attacker could possibly use this issue to cause a buffer overflow,\nresulting in a denial of service, or arbitrary code execution.\n","status":"published","published":"2023-06-12T13:20:44Z","modified":"2026-02-10T04:43:09Z","updated_at":"2026-11-02T16:58:16.738762Z"}]}}