Integer Overflow or Wraparound Affecting libxml2 package, versions <2.9.14+dfsg-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.15% (53rd percentile)

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  • Snyk IDSNYK-DEBIAN12-LIBXML2-2806811
  • published3 May 2022
  • disclosed3 May 2022

Introduced: 3 May 2022

CVE-2022-29824  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Debian:12 libxml2 to version 2.9.14+dfsg-1 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:12 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

CVSS Scores

version 3.1