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USN-6307-1: JOSE for C/C++ vulnerability

24 August 2023

JOSE for C/C++ could be made to crash if it received specially crafted input.

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Releases

Packages

  • cjose - Development files for libcjose

Details

It was discovered that JOSE for C/C++ AES GCM decryption routine incorrectly
uses the Tag length from the actual Authentication Tag provided in the JWE.
An attacker could use this to cause a denial of service (system crash) or
might expose sensitive information.

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 23.04
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04

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

References

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Further reading