Integer Overflow or Wraparound Affecting expat package, versions <0:2.1.0-14.amzn2.0.1
Threat Intelligence
EPSS
0.15% (52nd
percentile)
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Test your applications- Snyk ID SNYK-AMZN2-EXPAT-2950348
- published 15 Jul 2022
- disclosed 6 Jan 2022
Introduced: 6 Jan 2022
CVE-2021-46143 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 expat to version 0:2.1.0-14.amzn2.0.1 or higher.
This issue was patched in ALAS2-2022-1809.
NVD Description
Note: Versions mentioned in the description apply only to the upstream expat package and not the expat package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46143
- http://www.openwall.com/lists/oss-security/2022/01/17/3
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
- https://github.com/libexpat/libexpat/issues/532
- https://github.com/libexpat/libexpat/pull/538
- https://security.gentoo.org/glsa/202209-24
- https://security.netapp.com/advisory/ntap-20220121-0006/
- https://www.debian.org/security/2022/dsa-5073
- https://www.tenable.com/security/tns-2022-05
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