Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') Affecting expat package, versions <2.6.0-r0
Threat Intelligence
EPSS
0.05% (22nd
percentile)
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Test your applications- Snyk ID SNYK-ALPINE320-EXPAT-7008983
- published 23 May 2024
- disclosed 4 Feb 2024
Introduced: 4 Feb 2024
CVE-2023-52426 Open this link in a new tabHow to fix?
Upgrade Alpine:3.20 expat to version 2.6.0-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream expat package and not the expat package as distributed by Alpine.
See How to fix? for Alpine:3.20 relevant fixed versions and status.
libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time.
References
- https://cwe.mitre.org/data/definitions/776.html
- https://github.com/libexpat/libexpat/commit/0f075ec8ecb5e43f8fdca5182f8cca4703da0404
- https://github.com/libexpat/libexpat/pull/777
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/
- https://security.netapp.com/advisory/ntap-20240307-0005/
CVSS Scores
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