ubuntu-cve-2022-29824
Vulnerability from osv_ubuntu
Published
2022-05-03 03:15
Modified
2026-04-22 07:41
Summary
Details
In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf) and tree.c (xmlBuffer) don't check for integer overflows. This can result in out-of-bounds memory writes. Exploitation requires a victim to open a crafted, multi-gigabyte XML file. Other software using libxml2's buffer functions, for example libxslt through 1.1.35, is affected as well.
Severity
6.5 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libxml2",
"binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm3"
},
{
"binary_name": "libxml2-utils",
"binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm3"
},
{
"binary_name": "python-libxml2",
"binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "libxml2",
"purl": "pkg:deb/ubuntu/libxml2@2.9.1+dfsg1-3ubuntu4.13+esm3?arch=source\u0026distro=trusty/esm"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.1+dfsg1-3ubuntu4.13+esm3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.1+dfsg1-3ubuntu2",
"2.9.1+dfsg1-3ubuntu3",
"2.9.1+dfsg1-3ubuntu4",
"2.9.1+dfsg1-3ubuntu4.1",
"2.9.1+dfsg1-3ubuntu4.2",
"2.9.1+dfsg1-3ubuntu4.3",
"2.9.1+dfsg1-3ubuntu4.4",
"2.9.1+dfsg1-3ubuntu4.5",
"2.9.1+dfsg1-3ubuntu4.6",
"2.9.1+dfsg1-3ubuntu4.7",
"2.9.1+dfsg1-3ubuntu4.8",
"2.9.1+dfsg1-3ubuntu4.9",
"2.9.1+dfsg1-3ubuntu4.10",
"2.9.1+dfsg1-3ubuntu4.11",
"2.9.1+dfsg1-3ubuntu4.12",
"2.9.1+dfsg1-3ubuntu4.13",
"2.9.1+dfsg1-3ubuntu4.13+esm1",
"2.9.1+dfsg1-3ubuntu4.13+esm2"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libxml2",
"binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm2"
},
{
"binary_name": "libxml2-utils",
"binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm2"
},
{
"binary_name": "python-libxml2",
"binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "libxml2",
"purl": "pkg:deb/ubuntu/libxml2@2.9.3+dfsg1-1ubuntu0.7+esm2?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.3+dfsg1-1ubuntu0.7+esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.2+zdfsg1-4",
"2.9.2+zdfsg1-4ubuntu1",
"2.9.2+zdfsg1-4ubuntu2",
"2.9.2+zdfsg1-4ubuntu3",
"2.9.3+dfsg1-1",
"2.9.3+dfsg1-1ubuntu0.1",
"2.9.3+dfsg1-1ubuntu0.2",
"2.9.3+dfsg1-1ubuntu0.3",
"2.9.3+dfsg1-1ubuntu0.4",
"2.9.3+dfsg1-1ubuntu0.5",
"2.9.3+dfsg1-1ubuntu0.6",
"2.9.3+dfsg1-1ubuntu0.7",
"2.9.3+dfsg1-1ubuntu0.7+esm1"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libxml2",
"binary_version": "2.9.4+dfsg1-6.1ubuntu1.6"
},
{
"binary_name": "libxml2-utils",
"binary_version": "2.9.4+dfsg1-6.1ubuntu1.6"
},
{
"binary_name": "python-libxml2",
"binary_version": "2.9.4+dfsg1-6.1ubuntu1.6"
},
{
"binary_name": "python3-libxml2",
"binary_version": "2.9.4+dfsg1-6.1ubuntu1.6"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "libxml2",
"purl": "pkg:deb/ubuntu/libxml2@2.9.4+dfsg1-6.1ubuntu1.6?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.4+dfsg1-6.1ubuntu1.6"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.4+dfsg1-4ubuntu1",
"2.9.4+dfsg1-5ubuntu1",
"2.9.4+dfsg1-5ubuntu2",
"2.9.4+dfsg1-5.1ubuntu1",
"2.9.4+dfsg1-5.2ubuntu1",
"2.9.4+dfsg1-6.1ubuntu1",
"2.9.4+dfsg1-6.1ubuntu1.2",
"2.9.4+dfsg1-6.1ubuntu1.3",
"2.9.4+dfsg1-6.1ubuntu1.4",
"2.9.4+dfsg1-6.1ubuntu1.5"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libxml2",
"binary_version": "2.9.10+dfsg-5ubuntu0.20.04.3"
},
{
"binary_name": "libxml2-utils",
"binary_version": "2.9.10+dfsg-5ubuntu0.20.04.3"
},
{
"binary_name": "python-libxml2",
"binary_version": "2.9.10+dfsg-5ubuntu0.20.04.3"
},
{
"binary_name": "python3-libxml2",
"binary_version": "2.9.10+dfsg-5ubuntu0.20.04.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "libxml2",
"purl": "pkg:deb/ubuntu/libxml2@2.9.10+dfsg-5ubuntu0.20.04.3?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.10+dfsg-5ubuntu0.20.04.3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.4+dfsg1-7ubuntu3",
"2.9.4+dfsg1-7ubuntu5",
"2.9.4+dfsg1-8ubuntu1",
"2.9.4+dfsg1-8ubuntu2",
"2.9.4+dfsg1-8ubuntu3",
"2.9.10+dfsg-1ubuntu3",
"2.9.10+dfsg-4build1",
"2.9.10+dfsg-5",
"2.9.10+dfsg-5ubuntu0.20.04.1",
"2.9.10+dfsg-5ubuntu0.20.04.2"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libxml2",
"binary_version": "2.9.13+dfsg-1ubuntu0.1"
},
{
"binary_name": "libxml2-utils",
"binary_version": "2.9.13+dfsg-1ubuntu0.1"
},
{
"binary_name": "python3-libxml2",
"binary_version": "2.9.13+dfsg-1ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "libxml2",
"purl": "pkg:deb/ubuntu/libxml2@2.9.13+dfsg-1ubuntu0.1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.9.13+dfsg-1ubuntu0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.9.12+dfsg-4",
"2.9.12+dfsg-5",
"2.9.12+dfsg-6",
"2.9.13+dfsg-1",
"2.9.13+dfsg-1build1"
]
}
],
"aliases": [],
"details": "In libxml2 before 2.9.14, several buffer handling functions in buf.c (xmlBuf*) and tree.c (xmlBuffer*) don\u0027t check for integer overflows. This can result in out-of-bounds memory writes. Exploitation requires a victim to open a crafted, multi-gigabyte XML file. Other software using libxml2\u0027s buffer functions, for example libxslt through 1.1.35, is affected as well.",
"id": "UBUNTU-CVE-2022-29824",
"modified": "2026-04-22T07:41:34Z",
"published": "2022-05-03T03:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2022-29824"
},
{
"type": "REPORT",
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/commit/2554a2408e09f13652049e5ffb0d26196b02ebab"
},
{
"type": "REPORT",
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/commit/6c283d83eccd940bcde15634ac8c7f100e3caefd"
},
{
"type": "REPORT",
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.9.14"
},
{
"type": "REPORT",
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/commit/6c283d83eccd940bcde15634ac8c7f100e3caefd"
},
{
"type": "REPORT",
"url": "https://gitlab.gnome.org/GNOME/libxslt/-/tags"
},
{
"type": "REPORT",
"url": "https://gitlab.gnome.org/GNOME/libxml2/-/commit/2554a2408e09f13652049e5ffb0d26196b02ebab"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5422-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-29824"
}
],
"related": [
"USN-5422-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2022-29824"
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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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