USN-7307-1: xmltok library vulnerability

26 February 2025

Libxmltok could be made to crash if it opened a specially crafted file.

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Releases

Packages

  • libxmltok - XML Parser Toolkit, runtime libraries

Details

Tim Boddy discovered that Expat, contained within the xmltok library, did
not properly handle memory reallocation when processing XML files. If a
user or application linked against Expat were tricked into opening a
crafted XML file, an attacker could cause a denial of service by consuming
excessive memory resources.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 24.10
Ubuntu 24.04
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04

In general, a standard system update will make all the necessary changes.

References

Related notices

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