ubuntu-cve-2024-25629
Vulnerability from osv_ubuntu
Published
2024-02-23 15:15
Modified
2026-04-22 07:48
Summary
Details
c-ares is a C library for asynchronous DNS requests. ares__read_line() is used to parse local configuration files such as /etc/resolv.conf, /etc/nsswitch.conf, the HOSTALIASES file, and if using a c-ares version prior to 1.27.0, the /etc/hosts file. If any of these configuration files has an embedded NULL character as the first character in a new line, it can lead to attempting to read memory prior to the start of the given buffer which may result in a crash. This issue is fixed in c-ares 1.27.0. No known workarounds exist.
Severity
5.5 (Medium)
4.4 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libc-ares2",
"binary_version": "1.10.0-3ubuntu0.2+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "c-ares",
"purl": "pkg:deb/ubuntu/c-ares@1.10.0-3ubuntu0.2+esm3?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.10.0-3ubuntu0.2+esm3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.10.0-2",
"1.10.0-3",
"1.10.0-3ubuntu0.1",
"1.10.0-3ubuntu0.2",
"1.10.0-3ubuntu0.2+esm1",
"1.10.0-3ubuntu0.2+esm2"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libc-ares2",
"binary_version": "1.14.0-1ubuntu0.2+esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "c-ares",
"purl": "pkg:deb/ubuntu/c-ares@1.14.0-1ubuntu0.2+esm2?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.14.0-1ubuntu0.2+esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.13.0-2",
"1.13.0-3",
"1.14.0-1",
"1.14.0-1ubuntu0.1",
"1.14.0-1ubuntu0.2",
"1.14.0-1ubuntu0.2+esm1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libc-ares2",
"binary_version": "1.15.0-1ubuntu0.5"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "c-ares",
"purl": "pkg:deb/ubuntu/c-ares@1.15.0-1ubuntu0.5?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.15.0-1ubuntu0.5"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.15.0-1build1",
"1.15.0-1ubuntu0.1",
"1.15.0-1ubuntu0.2",
"1.15.0-1ubuntu0.3",
"1.15.0-1ubuntu0.4"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libc-ares2",
"binary_version": "1.18.1-1ubuntu0.22.04.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "c-ares",
"purl": "pkg:deb/ubuntu/c-ares@1.18.1-1ubuntu0.22.04.3?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.18.1-1ubuntu0.22.04.3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.17.1-1ubuntu1",
"1.18.1-1",
"1.18.1-1build1",
"1.18.1-1ubuntu0.22.04.1",
"1.18.1-1ubuntu0.22.04.2"
]
}
],
"aliases": [],
"details": "c-ares is a C library for asynchronous DNS requests. `ares__read_line()` is used to parse local configuration files such as `/etc/resolv.conf`, `/etc/nsswitch.conf`, the `HOSTALIASES` file, and if using a c-ares version prior to 1.27.0, the `/etc/hosts` file. If any of these configuration files has an embedded `NULL` character as the first character in a new line, it can lead to attempting to read memory prior to the start of the given buffer which may result in a crash. This issue is fixed in c-ares 1.27.0. No known workarounds exist.",
"id": "UBUNTU-CVE-2024-25629",
"modified": "2026-04-22T07:48:01Z",
"published": "2024-02-23T15:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2024-25629"
},
{
"type": "REPORT",
"url": "https://github.com/c-ares/c-ares/security/advisories/GHSA-mg26-v6qh-x48q"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-6676-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-25629"
}
],
"related": [
"USN-6676-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2024-25629"
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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