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Integer Overflow or Wraparound Affecting libxml2-python27 package, versions <0:2.9.1-6.6.42.amzn1

medium

Snyk CVSS

    Attack Complexity High
    Integrity High
    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-AMZN201803-LIBXML2PYTHON27-5496862
  • published 4 May 2023
  • disclosed 3 May 2022
Report a new vulnerability Found a mistake?

Introduced: 3 May 2022

CVE-2022-29824 Open this link in a new tab
CWE-190 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2018.03 libxml2-python27 to version 0:2.9.1-6.6.42.amzn1 or higher.
This issue was patched in ALAS-2023-1743.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2-python27 package and not the libxml2-python27 package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 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