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USN-5688-1: Libksba vulnerability

19 October 2022

Libksba could be made to crash or run programs if it decoded specially crafted data.

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Releases

Packages

  • libksba - X.509 and CMS support library

Details

It was discovered that an integer overflow could be triggered in Libksba
when decoding certain data. An attacker could use this issue to cause a
denial of service (application crash) or possibly execute arbitrary code.

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 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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

References

Related notices

  • USN-5688-2: libksba-dev, libksba, libksba-mingw-w64-dev, libksba8

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Further reading