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Integer Overflow or Wraparound Affecting libxml2 package, versions <2.9.4+dfsg1-7+deb10u4

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Availability High

    Threat Intelligence

    EPSS 0.15% (51st percentile)
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NVD
6.5 medium
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SUSE
7.8 high
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Red Hat
7.4 high

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  • Snyk ID SNYK-DEBIAN10-LIBXML2-2806809
  • published 3 May 2022
  • disclosed 3 May 2022
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Introduced: 3 May 2022

CVE-2022-29824 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

Upgrade Debian:10 libxml2 to version 2.9.4+dfsg1-7+deb10u4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2 package and not the libxml2 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

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.

References