USN-6499-1: GnuTLS vulnerability
21 November 2023
GnuTLS could be made to expose sensitive information over the network.
Releases
Packages
- gnutls28 - GNU TLS library
Details
It was discovered that GnuTLS had a timing side-channel when handling
certain RSA-PSK key exchanges. A remote attacker could possibly use this
issue to recover sensitive information.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 23.10
Ubuntu 23.04
Ubuntu 22.04
Ubuntu 20.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-6499-2: libgnutls-openssl27, libgnutls30, gnutls28, gnutls-doc, libgnutls-dane0, gnutls-bin, libgnutlsxx28, libgnutls28-dev