{"id":"CVE-2022-3924","aliases":["ALPINE-CVE-2022-3924","ALSA-2023:2261","ALSA-2023:2792","AZL-13227","BELL-CVE-2022-3924","DEBIAN-CVE-2022-3924","DSA-5329-1","EUVD-2022-43258","GHSA-29px-hvx8-j7xf","OESA-2023-1067","OESA-2023-1068","RHSA-2023:2261","RHSA-2023:2792","SUSE-SU-2023:0341-1","UBUNTU-CVE-2022-3924","USN-5827-1","openSUSE-SU-2024:12641-1"],"status":"published","title":"named configured to answer from stale cache may terminate unexpectedly at recursive-clients soft quota","description":"This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero.\n\nIf the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure.\nThis issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.","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":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.15989,"percentile":0.96926,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-617"],"published":"2023-01-25T00:00:00Z","modified":"2026-11-03T07:18:33Z","fixes":[{"ecosystem":"Alpine:v3.14","package":"bind","fixed_in":["9.16.37-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"bind","fixed_in":["9.16.37-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"bind","fixed_in":["9.16.37-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"bind","fixed_in":["9.18.11-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"bind","fixed_in":["9.18.11-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"bind","fixed_in":["9.18.11-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"bind","fixed_in":["9.18.11-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"bind","fixed_in":["9.18.11-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"bind","fixed_in":["9.18.11-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"bind","fixed_in":["9.18.11-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"bind","fixed_in":["9.18.11-r0"],"sources":["osv"]},{"ecosystem":"Azure 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Advisory","advisory","article","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-3924","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-29px-hvx8-j7xf"},{"url":"https://security.alpinelinux.org/vuln/CVE-2022-3924","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2023:2261","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-2795","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-3094","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-3736","tags":["report"]},{"url":"https://access.redhat.com/security/cve/CVE-2022-3924","tags":["report"]},{"url":"https://bugzilla.redhat.com/2128584","tags":["report"]},{"url":"https://bugzilla.redhat.com/2164032","tags":["report"]},{"url":"https://bugzilla.redhat.com/2164038","tags":["report"]},{"url":"https://bugzilla.redhat.com/2164039","tags":["report"]},{"url":"https://errata.almalinux.org/9/ALSA-2023-2261.html","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2023:2792","tags":["advisory"]},{"url":"https://errata.almalinux.org/8/ALSA-2023-2792.html","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2022-3924","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2022-3924","tags":["advisory"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1067","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-3094","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-3736","tags":["advisory"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1068","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.2_release_notes/index","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2126912","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2128584","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2129466","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2162795","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2164032","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2164038","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2164039","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_2261.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-2795","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-2795","tags":["advisory"]},{"url":"https://kb.isc.org/docs/cve-2022-2795","tags":["article"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-3094","tags":["advisory"]},{"url":"https://kb.isc.org/docs/cve-2022-3094","tags":["article"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-3736","tags":["advisory"]},{"url":"https://kb.isc.org/docs/cve-2022-3736","tags":["article"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-3924","tags":["advisory","report"]},{"url":"https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.8_release_notes/index","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2115322","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_2792.json","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20230341-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1207471","tags":["report"]},{"url":"https://bugzilla.suse.com/1207473","tags":["report"]},{"url":"https://bugzilla.suse.com/1207475","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2022-3094","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-3736","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-3924","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2022-3924","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-5827-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-3094","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-3736","tags":["report"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2022-3924","title":"named configured to answer from stale cache may terminate unexpectedly at recursive-clients soft quota","description":"This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero.\n\nIf the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure.\nThis issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.","status":"published","published":"2023-01-25T21:39:49.11Z","modified":"2025-03-31T13:58:09.212Z","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":"cna"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:34:33.24035Z"}],"euvd":[{"id":"EUVD-2022-43258","description":"This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero.\n\nIf the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure.\nThis issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.","status":"published","published":"2023-01-25T21:39:49Z","modified":"2025-03-31T13:58:09Z","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":"2026-11-02T20:52:46.759966Z"}],"ghsa":[{"id":"GHSA-29px-hvx8-j7xf","title":"This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the...","description":"This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero. If the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.","status":"published","published":"2023-01-26T21:30:23Z","modified":"2023-02-06T18:30:31Z","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"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:53:58.500745Z"}],"nvd":[{"id":"CVE-2022-3924","description":"This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero.\n\nIf the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure.\nThis issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.","status":"published","published":"2023-01-26T21:16:03.273Z","modified":"2026-06-17T05:00:35.713Z","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":"secondary"},{"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"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:07:35.561816Z"}],"osv":[{"id":"ALPINE-CVE-2022-3924","description":"This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero.\n\nIf the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure.\nThis issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.","status":"published","published":"2023-01-26T21:16:03.273Z","modified":"2026-11-03T07:18:33.524428315Z","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":"2026-11-03T07:50:38.973973Z"},{"id":"AZL-13227","title":"CVE-2022-3924 affecting package bind for versions less than 9.16.37-2","description":"This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero.\n\nIf the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure.\nThis issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.","status":"published","published":"2023-01-26T21:16:03Z","modified":"2026-04-21T04:22:44.345259Z","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":"2026-11-02T15:28:02.666535Z"},{"id":"BELL-CVE-2022-3924","title":"CVE-2022-3924 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:15:16.582258Z","modified":"2026-01-26T09:47:37.151284Z","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-2022-3924","description":"This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero.\n\nIf the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure.\nThis issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.","status":"published","published":"2023-01-26T21:16:03.273Z","modified":"2026-10-24T10:30:31.333200173Z","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":"2026-11-02T15:44:26.53798Z"},{"id":"OESA-2023-1067","title":"bind security update","description":"BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly.\r\n\r\nSecurity Fix(es):\r\n\r\nSending a flood of dynamic DNS updates may cause `named` to allocate large amounts of memory. This, in turn, may cause `named` to exit due to a lack of free memory. We are not aware of any cases where this has been exploited. Memory is allocated prior to the checking of access permissions (ACLs) and is retained during the processing of a dynamic update from a client whose access credentials are accepted. Memory allocated to clients that are not permitted to send updates is released immediately upon rejection. The scope of this vulnerability is limited therefore to trusted clients who are permitted to make dynamic zone changes. If a dynamic update is REFUSED, memory will be released again very quickly. Therefore it is only likely to be possible to degrade or stop `named` by sending a flood of unaccepted dynamic updates comparable in magnitude to a query flood intended to achieve the same detrimental outcome. BIND 9.11 and earlier branches are also affected, but through exhaustion of internal resources rather than memory constraints. This may reduce performance but should not be a significant problem for most servers. Therefore we don\u0026apos;t intend to address this for BIND versions prior to BIND 9.16. This issue affects BIND 9 versions 9.16.0 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.8-S1 through 9.16.36-S1.(CVE-2022-3094)\r\n\r\nBIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG query. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.(CVE-2022-3736)\r\n\r\nThis issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero. If the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.(CVE-2022-3924)","status":"published","published":"2023-02-10T11:05:32Z","modified":"2026-08-18T01:17:30.696617935Z","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":"2026-11-02T15:52:39.934788Z"},{"id":"OESA-2023-1068","title":"bind security update","description":"BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly.\r\n\r\nSecurity Fix(es):\r\n\r\nSending a flood of dynamic DNS updates may cause `named` to allocate large amounts of memory. This, in turn, may cause `named` to exit due to a lack of free memory. We are not aware of any cases where this has been exploited. Memory is allocated prior to the checking of access permissions (ACLs) and is retained during the processing of a dynamic update from a client whose access credentials are accepted. Memory allocated to clients that are not permitted to send updates is released immediately upon rejection. The scope of this vulnerability is limited therefore to trusted clients who are permitted to make dynamic zone changes. If a dynamic update is REFUSED, memory will be released again very quickly. Therefore it is only likely to be possible to degrade or stop `named` by sending a flood of unaccepted dynamic updates comparable in magnitude to a query flood intended to achieve the same detrimental outcome. BIND 9.11 and earlier branches are also affected, but through exhaustion of internal resources rather than memory constraints. This may reduce performance but should not be a significant problem for most servers. Therefore we don\u0026apos;t intend to address this for BIND versions prior to BIND 9.16. This issue affects BIND 9 versions 9.16.0 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.8-S1 through 9.16.36-S1.(CVE-2022-3094)\r\n\r\nBIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG query. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.(CVE-2022-3736)\r\n\r\nThis issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero. If the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.(CVE-2022-3924)","status":"published","published":"2023-02-10T11:05:32Z","modified":"2026-08-18T01:17:30.725724513Z","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":"2026-11-02T15:52:39.934788Z"},{"id":"RHSA-2023:2261","title":"Red Hat Security Advisory: bind security and bug fix update","status":"published","published":"2024-09-16T09:42:56Z","modified":"2026-09-02T10:01:48Z","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":"2026-11-02T15:53:10.611604Z"},{"id":"RHSA-2023:2792","title":"Red Hat Security Advisory: bind9.16 security and bug fix update","status":"published","published":"2024-09-16T09:43:17Z","modified":"2026-09-02T10:01:49Z","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":"2026-11-02T15:53:11.154197Z"},{"id":"UBUNTU-CVE-2022-3924","description":"This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero. If the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.","status":"published","published":"2023-01-25T00:00:00Z","modified":"2026-04-22T13:27:50.752473Z","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":"2026-11-02T16:53:55.502114Z"},{"id":"ALSA-2023:2261","title":"Moderate: bind security and bug fix update","description":"The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.\n\nSecurity Fix(es):\n\n* bind: processing large delegations may severely degrade resolver performance (CVE-2022-2795)\n* bind: flooding with UPDATE requests may lead to DoS (CVE-2022-3094)\n* bind: sending specific queries to the resolver may cause a DoS (CVE-2022-3736)\n* bind: sending specific queries to the resolver may cause a DoS (CVE-2022-3924)\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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.","status":"published","published":"2023-05-09T00:00:00Z","modified":"2026-10-29T11:30:45.540150346Z","updated_at":"2026-11-02T15:27:51.655726Z"},{"id":"ALSA-2023:2792","title":"Moderate: bind9.16 security and bug fix update","description":"The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.\n\nSecurity Fix(es):\n\n* bind: processing large delegations may severely degrade resolver performance (CVE-2022-2795)\n* bind: flooding with UPDATE requests may lead to DoS (CVE-2022-3094)\n* bind: sending specific queries to the resolver may cause a DoS (CVE-2022-3736)\n* bind: sending specific queries to the resolver may cause a DoS (CVE-2022-3924)\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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.","status":"published","published":"2023-05-16T00:00:00Z","modified":"2026-10-29T11:02:05.247884122Z","updated_at":"2026-11-02T15:27:51.655726Z"},{"id":"DEBIAN-CVE-2022-3924","description":"This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero.  If the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.","status":"published","published":"2023-01-26T21:16:03.273Z","modified":"2026-11-03T06:02:44.701395413Z","updated_at":"2026-11-03T06:43:43.638289Z"},{"id":"DSA-5329-1","title":"bind9 - security update","status":"published","published":"2023-01-26T00:00:00Z","modified":"2026-03-09T02:09:44.978965Z","updated_at":"2026-11-02T15:46:17.543497Z"},{"id":"openSUSE-SU-2024:12641-1","title":"bind-9.18.11-1.1 on GA media","description":"These are all security issues fixed in the bind-9.18.11-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:20:57.667418Z","updated_at":"2026-11-02T16:58:35.751245Z"},{"id":"SUSE-SU-2023:0341-1","title":"Security update for bind","description":"This update for bind fixes the following issues:\n\n- Updated to version 9.16.37 (jsc#SLE-24600):\n  - CVE-2022-3094: Fixed an issue where a message flood could exhaust\n    all available memory (bsc#1207471).\n  - CVE-2022-3736: Fixed a potential crash upon receiving an RRSIG in\n    configurations with stale cache and stale answers enabled and\n    stale-answer-client-timeout set to a positive value (bsc#1207473).\n  - CVE-2022-3924: Fixed a potential crash upon reaching the\n    recursive-clients soft quota in configurations with stale answers\n    enabled and stale-answer-client-timeout set to a positive value\n    (bsc#1207475).\n","status":"published","published":"2023-02-10T09:04:44Z","modified":"2026-02-04T04:37:48.227325Z","updated_at":"2026-11-02T15:53:51.853735Z"},{"id":"USN-5827-1","title":"bind9 vulnerabilities","description":"Rob Schulhof discovered that Bind incorrectly handled a large number of\nUPDATE messages. A remote attacker could possibly use this issue to cause\nBind to consume resources, resulting in a denial of service.\n(CVE-2022-3094)\n\nBorja Marcos discovered that Bind incorrectly handled certain RRSIG\nqueries. A remote attacker could possibly use this issue to cause Bind to\ncrash, resulting in a denial of service. This issue only affected Ubuntu\n22.04 LTS and Ubuntu 22.10. (CVE-2022-3736)\n\nMaksym Odinintsev discovered that Bind incorrectly handled certain answers\nfrom stale cache. A remote attacker could possibly use this issue to cause\nBind to crash, resulting in a denial of service. This issue only affected\nUbuntu 22.04 LTS and Ubuntu 22.10. (CVE-2022-3924)\n","status":"published","published":"2023-01-25T17:56:23Z","modified":"2026-04-22T10:32:07.014969Z","updated_at":"2026-11-02T16:58:16.738762Z"}]}}