Debian Security Advisory
DSA-5391-1 libxml2 -- security update
- Date Reported:
- 20 Apr 2023
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 1034436, Bug 1034437.
In Mitre's CVE dictionary: CVE-2023-28484, CVE-2023-29469.
- More information:
Several vulnerabilities were discovered in libxml2, a library providing support to read, modify and write XML and HTML files.
A NULL pointer dereference flaw when parsing invalid XML schemas may result in denial of service.
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