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Debian LTS Advisory DLA-4309-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Guilhem Moulin
September 25, 2025 https://wiki.debian.org/LTS
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Package : libxslt
Version : 1.1.34-4+deb11u3
CVE ID : CVE-2023-40403 CVE-2025-7424
Debian Bug : 1108074 1109123
Two vulnerabilities were found in libxslt, an XSLT 1.0 processing
library, which could lead to to denial of service or information
disclosure.
CVE-2023-40403
It was discovered that the generate-id() function could return
deterministic values and could leak the memory layout of different
XML objects, which might lead to information disclosure.
CVE-2025-7424
Ivan Fratric discovered a type confusion vulnerability in
xmlNode.psvi between stylesheet and source nodes. which could lead
to application crash.
For Debian 11 bullseye, these problems have been fixed in version
1.1.34-4+deb11u3.
We recommend that you upgrade your libxslt packages.
For the detailed security status of libxslt please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libxslt
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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