Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') Affecting expat-debuginfo package, versions <0:2.5.0-1.amzn2023.0.3


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (23rd percentile)

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  • Snyk IDSNYK-AMZN2023-EXPATDEBUGINFO-6253557
  • published20 Feb 2024
  • disclosed4 Feb 2024

Introduced: 4 Feb 2024

CVE-2023-52426  (opens in a new tab)
CWE-776  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 expat-debuginfo to version 0:2.5.0-1.amzn2023.0.3 or higher.
This issue was patched in ALAS2023-2024-524.

NVD Description

Note: Versions mentioned in the description apply only to the upstream expat-debuginfo package and not the expat-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time.

CVSS Scores

version 3.1