CVE catalog

CVE-2022-40303

libxml2: CVE-2022-40303

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Oct 14, 2022, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 41.37% · Oct 25, 2026

An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	libxml2	sid	`2.15.4+dfsg-1`	fixed
Debian	libxml2	forky	`2.15.4+dfsg-1`	fixed
Debian	libxml2	trixie	`2.12.7+dfsg+really2.9.14-2.1+deb13u3`	fixed
Debian	libxml2	trixie-security	`2.12.7+dfsg+really2.9.14-2.1+deb13u1`	fixed
Debian	libxml2	bookworm	`2.9.14+dfsg-1.3~deb12u6`	fixed
Debian	libxml2	bookworm-security	`2.9.14+dfsg-1.3~deb12u4`	fixed
Cpe	libxml2	Not reported	`2.10.3`	fixed
Cpe	active_iq_unified_manager	Not reported	Not reported	unknown
Cpe	clustered_data_ontap	Not reported	Not reported	unknown
Cpe	clustered_data_ontap_antivirus_connector	Not reported	Not reported	unknown
Cpe	netapp_manageability_sdk	Not reported	Not reported	unknown
Cpe	ontap_select_deploy_administration_utility	Not reported	Not reported	unknown
Cpe	snapmanager	Not reported	Not reported	unknown
Cpe	ipados	Not reported	`15.7.2`	fixed
Cpe	iphone_os	Not reported	`15.7.2`	fixed
Cpe	macos	Not reported	`12.6.2`	fixed
Cpe	tvos	Not reported	`16.2`	fixed
Cpe	watchos	Not reported	`9.2`	fixed
Cpe	h300s_firmware	Not reported	Not reported	unknown
Cpe	h500s_firmware	Not reported	Not reported	unknown
Cpe	h700s_firmware	Not reported	Not reported	unknown
Cpe	h410s_firmware	Not reported	Not reported	unknown
Cpe	h410c_firmware	Not reported	Not reported	unknown
Android	platform/external/libxml2	Not reported	`13`	vulnerable
Android	platform/external/libxml2	Not reported	`13:2023-03-01`	fixed
Ubuntu	libxml2	pro	`2.9.2+zdfsg1-4`	vulnerable
Ubuntu	libxml2	pro	`2.9.2+zdfsg1-4ubuntu1`	vulnerable
Ubuntu	libxml2	pro	`2.9.2+zdfsg1-4ubuntu2`	vulnerable
Ubuntu	libxml2	pro	`2.9.2+zdfsg1-4ubuntu3`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.1`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.2`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.3`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.4`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.5`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.6`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.7`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.7+esm1`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.7+esm2`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.7+esm3`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.7+esm4`	fixed
Ubuntu	libxml2	pro	`2.9.2+zdfsg1-4`	vulnerable
Ubuntu	libxml2	pro	`2.9.2+zdfsg1-4ubuntu1`	vulnerable
Ubuntu	libxml2	pro	`2.9.2+zdfsg1-4ubuntu2`	vulnerable
Ubuntu	libxml2	pro	`2.9.2+zdfsg1-4ubuntu3`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.1`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.2`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.3`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.4`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.5`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.6`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.7`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.7+esm1`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.7+esm2`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.7+esm3`	vulnerable
Ubuntu	libxml2	pro	`2.9.3+dfsg1-1ubuntu0.7+esm4`	fixed
Ubuntu	libxml2	18.04	`2.9.4+dfsg1-4ubuntu1`	vulnerable
Ubuntu	libxml2	18.04	`2.9.4+dfsg1-5ubuntu1`	vulnerable
Ubuntu	libxml2	18.04	`2.9.4+dfsg1-5ubuntu2`	vulnerable
Ubuntu	libxml2	18.04	`2.9.4+dfsg1-5.1ubuntu1`	vulnerable
Ubuntu	libxml2	18.04	`2.9.4+dfsg1-5.2ubuntu1`	vulnerable
Ubuntu	libxml2	18.04	`2.9.4+dfsg1-6.1ubuntu1`	vulnerable
Ubuntu	libxml2	18.04	`2.9.4+dfsg1-6.1ubuntu1.2`	vulnerable
Ubuntu	libxml2	18.04	`2.9.4+dfsg1-6.1ubuntu1.3`	vulnerable
Ubuntu	libxml2	18.04	`2.9.4+dfsg1-6.1ubuntu1.4`	vulnerable
Ubuntu	libxml2	18.04	`2.9.4+dfsg1-6.1ubuntu1.5`	vulnerable
Ubuntu	libxml2	18.04	`2.9.4+dfsg1-6.1ubuntu1.6`	vulnerable
Ubuntu	libxml2	18.04	`2.9.4+dfsg1-6.1ubuntu1.7`	vulnerable
Ubuntu	libxml2	18.04	`2.9.4+dfsg1-6.1ubuntu1.8`	fixed
Ubuntu	libxml2	20.04	`2.9.4+dfsg1-7ubuntu3`	vulnerable
Ubuntu	libxml2	20.04	`2.9.4+dfsg1-7ubuntu5`	vulnerable
Ubuntu	libxml2	20.04	`2.9.4+dfsg1-8ubuntu1`	vulnerable
Ubuntu	libxml2	20.04	`2.9.4+dfsg1-8ubuntu2`	vulnerable
Ubuntu	libxml2	20.04	`2.9.4+dfsg1-8ubuntu3`	vulnerable
Ubuntu	libxml2	20.04	`2.9.10+dfsg-1ubuntu3`	vulnerable
Ubuntu	libxml2	20.04	`2.9.10+dfsg-4build1`	vulnerable
Ubuntu	libxml2	20.04	`2.9.10+dfsg-5`	vulnerable
Ubuntu	libxml2	20.04	`2.9.10+dfsg-5ubuntu0.20.04.1`	vulnerable
Ubuntu	libxml2	20.04	`2.9.10+dfsg-5ubuntu0.20.04.2`	vulnerable
Ubuntu	libxml2	20.04	`2.9.10+dfsg-5ubuntu0.20.04.3`	vulnerable
Ubuntu	libxml2	20.04	`2.9.10+dfsg-5ubuntu0.20.04.4`	vulnerable
Ubuntu	libxml2	20.04	`2.9.10+dfsg-5ubuntu0.20.04.5`	fixed
Ubuntu	libxml2	22.04	`2.9.12+dfsg-4`	vulnerable
Ubuntu	libxml2	22.04	`2.9.12+dfsg-5`	vulnerable
Ubuntu	libxml2	22.04	`2.9.12+dfsg-6`	vulnerable
Ubuntu	libxml2	22.04	`2.9.13+dfsg-1`	vulnerable
Ubuntu	libxml2	22.04	`2.9.13+dfsg-1build1`	vulnerable
Ubuntu	libxml2	22.04	`2.9.13+dfsg-1ubuntu0.1`	vulnerable
Ubuntu	libxml2	22.04	`2.9.13+dfsg-1ubuntu0.2`	fixed
Opensuse	libxml2	tumbleweed	`2.10.3-1.1`	fixed
Suse	libxml2	linux enterprise micro 5.3	`2.9.14-150400.5.10.1`	fixed
Suse	libxml2-python	linux enterprise micro 5.3	`2.9.14-150400.5.10.1`	fixed
Suse	libxml2	linux enterprise module for basesystem 15 sp4	`2.9.14-150400.5.10.1`	fixed
Suse	libxml2-python	linux enterprise module for basesystem 15 sp4	`2.9.14-150400.5.10.1`	fixed
Opensuse	libxml2	leap 15.4	`2.9.14-150400.5.10.1`	fixed
Opensuse	libxml2-python	leap 15.4	`2.9.14-150400.5.10.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libxml2	source	sid	`2.9.14+dfsg-1.1`	not yet assigned	Not reported	[1022224]
Debian	libxml2	source	forky	`2.9.14+dfsg-1.1`	not yet assigned	Not reported	[1022224]
Debian	libxml2	source	trixie	`2.9.14+dfsg-1.1`	not yet assigned	Not reported	[1022224]
Debian	libxml2	source	bookworm	`2.9.14+dfsg-1.1`	not yet assigned	Not reported	[1022224]
Cpe	libxml2	cpe	Not reported	`2.10.3`	Not reported	NVD-CVE-2022-40303	Not reported
Cpe	ipados	cpe	Not reported	`15.7.2`	Not reported	NVD-CVE-2022-40303	Not reported
Cpe	iphone_os	cpe	Not reported	`15.7.2`	Not reported	NVD-CVE-2022-40303	Not reported
Cpe	macos	cpe	Not reported	`12.6.2`	Not reported	NVD-CVE-2022-40303	Not reported
Cpe	tvos	cpe	Not reported	`16.2`	Not reported	NVD-CVE-2022-40303	Not reported
Cpe	watchos	cpe	Not reported	`9.2`	Not reported	NVD-CVE-2022-40303	Not reported
Android	platform/external/libxml2	Android	Not reported	`13:2023-03-01`	Not reported	PUB-A-260709824	Not reported
Ubuntu	libxml2	deb	pro	`2.9.3+dfsg1-1ubuntu0.7+esm4`	Not reported	USN-5760-2	Not reported
Ubuntu	libxml2	deb	pro	`2.9.3+dfsg1-1ubuntu0.7+esm4`	Not reported	UBUNTU-CVE-2022-40303	Not reported
Ubuntu	libxml2	deb	18.04	`2.9.4+dfsg1-6.1ubuntu1.8`	Not reported	UBUNTU-CVE-2022-40303	Not reported
Ubuntu	libxml2	deb	20.04	`2.9.10+dfsg-5ubuntu0.20.04.5`	Not reported	UBUNTU-CVE-2022-40303	Not reported
Ubuntu	libxml2	deb	22.04	`2.9.13+dfsg-1ubuntu0.2`	Not reported	UBUNTU-CVE-2022-40303	Not reported
Opensuse	libxml2	rpm	tumbleweed	`2.10.3-1.1`	Not reported	OPENSUSE-SU-2024:12419-1	Not reported
Suse	libxml2	rpm	linux enterprise micro 5.3	`2.9.14-150400.5.10.1`	Not reported	SUSE-SU-2022:3692-1	Not reported
Suse	libxml2-python	rpm	linux enterprise micro 5.3	`2.9.14-150400.5.10.1`	Not reported	SUSE-SU-2022:3692-1	Not reported
Suse	libxml2	rpm	linux enterprise module for basesystem 15 sp4	`2.9.14-150400.5.10.1`	Not reported	SUSE-SU-2022:3692-1	Not reported
Suse	libxml2-python	rpm	linux enterprise module for basesystem 15 sp4	`2.9.14-150400.5.10.1`	Not reported	SUSE-SU-2022:3692-1	Not reported
Opensuse	libxml2	rpm	leap 15.4	`2.9.14-150400.5.10.1`	Not reported	SUSE-SU-2022:3692-1	Not reported
Opensuse	libxml2-python	rpm	leap 15.4	`2.9.14-150400.5.10.1`	Not reported	SUSE-SU-2022:3692-1	Not reported

[Debian bug #1022224]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[libxml2]Unknown
Details (4)
- 2.9.14+dfsg-1.3~deb12u6 · amd64 · bookworm
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u6 · arm64 · bookworm
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u4 · amd64 · bookworm-security
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u4 · arm64 · bookworm-security
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
[libxml2-dev]Unknown
Source package: [libxml2]
Details (4)
- 2.9.14+dfsg-1.3~deb12u6 · amd64 · bookworm
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u6 · arm64 · bookworm
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u4 · amd64 · bookworm-security
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u4 · arm64 · bookworm-security
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
[libxml2-doc]Unknown
Source package: [libxml2]
Details (4)
- 2.9.14+dfsg-1.3~deb12u6 · all · bookworm
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u6 · all · bookworm
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u4 · all · bookworm-security
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u4 · all · bookworm-security
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
[libxml2-utils]Unknown
Source package: [libxml2]
Details (4)
- 2.9.14+dfsg-1.3~deb12u6 · amd64 · bookworm
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u6 · arm64 · bookworm
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u4 · amd64 · bookworm-security
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u4 · arm64 · bookworm-security
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
[python3-libxml2]Unknown
Source package: [libxml2]
Details (4)
- 2.9.14+dfsg-1.3~deb12u6 · amd64 · bookworm
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u6 · arm64 · bookworm
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u4 · amd64 · bookworm-security
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm
- 2.9.14+dfsg-1.3~deb12u4 · arm64 · bookworm-security
  Fixed · Fixed: 2.9.14+dfsg-1.1
  dsa · libxml2 · debian · bookworm

[openSUSE Tumbleweed]

[libxml2-16]Unknown
Source package: [libxml2]
Details (1)
- 2.15.3-2.2 · x86_64 · tumbleweed
  Unknown · Fixed: 2.10.3-1.1
  Version impact unknown
  dsa · libxml2 · opensuse · tumbleweed
[libxml2-16-32bit]Unknown
Source package: [libxml2]
Details (1)
- 2.15.3-2.2 · x86_64 · tumbleweed
  Unknown · Fixed: 2.10.3-1.1
  Version impact unknown
  dsa · libxml2 · opensuse · tumbleweed
[libxml2-devel]Unknown
Source package: [libxml2]
Details (1)
- 2.15.3-2.2 · x86_64 · tumbleweed
  Unknown · Fixed: 2.10.3-1.1
  Version impact unknown
  dsa · libxml2 · opensuse · tumbleweed
[libxml2-devel-32bit]Unknown
Source package: [libxml2]
Details (1)
- 2.15.3-2.2 · x86_64 · tumbleweed
  Unknown · Fixed: 2.10.3-1.1
  Version impact unknown
  dsa · libxml2 · opensuse · tumbleweed
[libxml2-tools]Unknown
Source package: [libxml2]
Details (1)
- 2.15.3-2.2 · x86_64 · tumbleweed
  Unknown · Fixed: 2.10.3-1.1
  Version impact unknown
  dsa · libxml2 · opensuse · tumbleweed

Observed: Oct 23, 2026, 6:29:41 PM UTC

References

[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]