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No exploitation reportedFix available

CVE-2022-29824

No exploitation reported by the sources we read.

  • Published2022-05-03
  • WeaknessCWE-190

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2022-05-0303:15CVE publishedNVD

Versions per branch

NVD
Debian debian linux
BranchAffectedFixed in
9.0= 9.0no fix published
10.0= 10.0no fix published
11.0= 11.0no fix published
Fedoraproject fedora
BranchAffectedFixed in
34.x= 34no fix published
35.x= 35no fix published
36.x= 36no fix published
Netapp active iq unified manager
BranchAffectedFixed in
—all versionsno fix published

16 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • libxml2Ubuntu:Pro:16.04:LTSall versions · fixed in 2.9.3+dfsg1-1ubuntu0.7+esm2
  • libxml2Ubuntu:Pro:14.04:LTSall versions · fixed in 2.9.1+dfsg1-3ubuntu4.13+esm3
  • libxml2Ubuntu:22.04:LTSall versions · fixed in 2.9.13+dfsg-1ubuntu0.1
  • libxml2Ubuntu:20.04:LTSall versions · fixed in 2.9.10+dfsg-5ubuntu0.20.04.3
  • libxml2Ubuntu:18.04:LTSall versions · fixed in 2.9.4+dfsg1-6.1ubuntu1.6
  • libxml2TuxCare:Ubuntu:16.04all versions · fixed in 2.9.3+dfsg1-1ubuntu0.7+tuxcare.els3and 4 other packages
  • libxml2TuxCare:CentOS:8.5all versions · fixed in 2.9.7-9.el8_4.2.tuxcare.els2and 3 other packages
  • libxml2TuxCare:CentOS:8.4all versions · fixed in 2.9.7-9.el8_4.2.tuxcare.els2and 3 other packages

98 more package ranges on OSV.dev

Vendor advisories

  • CVE-2022-29824 Red Hat Product Security90 products fixed · 10 known affected

    libxml2: integer overflows in xmlBuf and xmlBuffer lead to out-of-bounds write

    libxml2 as a component of Red Hat Enterprise Linux 6 · libxml2-devel as a component of Red Hat Enterprise Linux 6 · libxml2-python as a component of Red Hat Enterprise Linux 6 · +7 more

  • ICSA-23-348-10 CISA5 known affected

    Siemens SIMATIC S7-1500

    SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) · SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) · SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) · +2 more

  • SSA-398330 Siemens ProductCERT5 known affected

    SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5

    SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= V3.1.0 < V3.1.5 · SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= V3.1.0 < V3.1.5 · SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= V3.1.0 < V3.1.5 · +2 more

  • RHSA-2022:8841 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.51 SP1 security update

  • RHSA-2022:5250 Red Hat Product Security45 products fixed

    Red Hat Security Advisory: libxml2 security update

  • RHSA-2022:5317 Red Hat Product Security45 products fixed

    Red Hat Security Advisory: libxml2 security update

Full record on NVD

Fix

  1. Vendor fix CISA ICSA-23-348-10 · 5 productsUpdate to V3.1.5 or later version
  2. Vendor fix Siemens ProductCERT SSA-398330 · 1 productUpdate to V3.1.5 or later version
  3. Vendor fix Red Hat Product Security RHSA-2022:8841 · 1 productFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  4. Vendor fix Red Hat Product Security RHSA-2022:5250 · 45 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The desktop must be restarted (log out, then log back in) for this update to take effect.
  5. Workaround from the vendor Red Hat Product Security RHSA-2022:8841 · 1 productAvoid passing large inputs to the libxml2 library.
  6. Mitigation from the vendor CISA ICSA-23-348-10 · 5 productsOnly build and run applications from trusted sources.

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published
2022-05-03
Last Modified
2026-10-14
NVD status
Modified
GitHub Advisory
GHSA-3rrw-pv9w-qgch

Frequently asked questions

What is CVE-2022-29824?

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.

Is CVE-2022-29824 actively exploited?

Active exploitation of CVE-2022-29824 has not been confirmed. Its EPSS score was 3.8% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-29824?

CVE-2022-29824 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

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