Integer Overflow or Wraparound Affecting libexpat/libexpat package, versions [,2.6.3)
Threat Intelligence
EPSS
0.09% (41st
percentile)
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Test your applications- Snyk ID SNYK-UNMANAGED-LIBEXPATLIBEXPAT-7856110
- published 1 Sep 2024
- disclosed 30 Aug 2024
- credit TaiYou
Introduced: 30 Aug 2024
CVE-2024-45491 Open this link in a new tabHow to fix?
Upgrade libexpat/libexpat to version 2.6.3 or higher.
Overview
Affected versions of this package are vulnerable to Integer Overflow or Wraparound in the dtdCopy() function in xmlparse.c, which doesn't properly check nDefaultAtts values.
Note: This is only exploitable on 32-bit platforms, since UINT_MAX is equal to SIZE_MAX.