ubuntu-cve-2022-3924
Vulnerability from osv_ubuntu
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.
{
"affected": [
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "bind9",
"binary_version": "1:9.18.1-1ubuntu1.3"
},
{
"binary_name": "bind9-dnsutils",
"binary_version": "1:9.18.1-1ubuntu1.3"
},
{
"binary_name": "bind9-host",
"binary_version": "1:9.18.1-1ubuntu1.3"
},
{
"binary_name": "bind9-libs",
"binary_version": "1:9.18.1-1ubuntu1.3"
},
{
"binary_name": "bind9-utils",
"binary_version": "1:9.18.1-1ubuntu1.3"
},
{
"binary_name": "bind9utils",
"binary_version": "1:9.18.1-1ubuntu1.3"
},
{
"binary_name": "dnsutils",
"binary_version": "1:9.18.1-1ubuntu1.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "bind9",
"purl": "pkg:deb/ubuntu/bind9@1:9.18.1-1ubuntu1.3?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.18.1-1ubuntu1.3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:9.16.15-1ubuntu1",
"1:9.16.15-1ubuntu2",
"1:9.16.15-1ubuntu3",
"1:9.18.0-2ubuntu1",
"1:9.18.0-2ubuntu2",
"1:9.18.0-2ubuntu3",
"1:9.18.1-1ubuntu1",
"1:9.18.1-1ubuntu1.1",
"1:9.18.1-1ubuntu1.2"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2022-3924",
"modified": "2026-04-22T07:41:23Z",
"published": "2023-01-25T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2022-3924"
},
{
"type": "REPORT",
"url": "https://kb.isc.org/docs/cve-2022-3924"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5827-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-3924"
}
],
"related": [
"USN-5827-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2022-3924"
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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