Home / mailings [SECURITY] [DSA 5391-1] libxml2 security update
Posted on 20 April 2023
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-5391-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
April 20, 2023 https://www.debian.org/security/faq
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Package : libxml2
CVE ID : CVE-2023-28484 CVE-2023-29469
Debian Bug : 1034436 1034437
Several vulnerabilities were discovered in libxml2, a library providing
support to read, modify and write XML and HTML files.
CVE-2023-28484
A NULL pointer dereference flaw when parsing invalid XML schemas may
result in denial of service.
CVE-2023-29469
It was reported that when hashing empty strings which aren't
null-terminated, xmlDictComputeFastKey could produce inconsistent
results, which may lead to various logic or memory errors.
For the stable distribution (bullseye), these problems have been fixed in
version 2.9.10+dfsg-6.7+deb11u4.
We recommend that you upgrade your libxml2 packages.
For the detailed security status of libxml2 please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/libxml2
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
