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Debian LTS Advisory DLA-3893-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Guilhem Moulin
September 19, 2024 https://wiki.debian.org/LTS
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Package : expat
Version : 2.2.10-2+deb11u6
CVE ID : CVE-2023-52425 CVE-2024-45490 CVE-2024-45491 CVE-2024-45492
Debian Bug : 1063238 1080149 1080150 1080152
Multiple vulnerabilities were found in expat, an XML parsing C library,
which could lead to Denial of Service, memory corruption or arbitrary
code execution.
CVE-2023-52425
Snild Dolkow discovered that when parsing a large token that
requires multiple buffer fills to complete, expat has to re-parse
the token from start multiple times, which could lead to Denial of
Service via resource exhaustion.
CVE-2024-45490
TaiYou discovered that xmlparse.c does not reject a negative length
for XML_ParseBuffer(), which may cause memory corruption or code
execution.
CVE-2024-45491
TaiYou discovered that xmlparse.c has an integer overflow for
`nDefaultAtts` on 32-bit platforms, which may cause denial of
service or code execution.
CVE-2024-45492
TaiYou discovered that xmlparse.c has an integer overflow for
`m_groupSize` on 32-bit platforms, which may cause denial of service
or code execution.
For Debian 11 bullseye, these problems have been fixed in version
2.2.10-2+deb11u6.
We recommend that you upgrade your expat packages.
For the detailed security status of expat please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/expat
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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