Debian Long Term Support / LTS Security Information / 2023 / Security Information -- DLA-3405-1 libxml2

Debian Security Advisory

DLA-3405-1 libxml2 -- LTS security update

Date Reported:

30 Apr 2023

Affected Packages:

libxml2

Vulnerable:

Yes

Security database references:

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.

• 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 Debian 10 buster, these problems have been fixed in version 2.9.4+dfsg1-7+deb10u6.

  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 LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS