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USN-5901-1: GnuTLS vulnerability

28 February 2023

GnuTLS could be made to expose sensitive information over the network.

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Releases

Packages

Details

Hubert Kario discovered that GnuTLS had a timing side-channel when handling
certain RSA messages. A remote attacker could possibly use this issue to
recover 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 22.10
Ubuntu 22.04
Ubuntu 20.04

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

References

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Further reading