USN-6733-2: GnuTLS vulnerabilities

Releases

• Ubuntu 24.04 LTS

Packages

• gnutls28 - GNU TLS library

Details

USN-6733-1 fixed vulnerabilities in GnuTLS. This update provides the
corresponding updates for Ubuntu 24.04 LTS.

Original advisory details:

It was discovered that GnuTLS had a timing side-channel when performing
certain ECDSA operations. A remote attacker could possibly use this issue
to recover sensitive information. (CVE-2024-28834)

It was discovered that GnuTLS incorrectly handled verifying certain PEM
bundles. A remote attacker could possibly use this issue to cause GnuTLS to
crash, resulting in a denial of service. This issue only affected Ubuntu
22.04 LTS and Ubuntu 23.10. (CVE-2024-28835)

Update instructions

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

Ubuntu 24.04

• libgnutls30t64 - 3.8.3-1.1ubuntu3.1

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

References

• CVE-2024-28835
• CVE-2024-28834

Related notices

• USN-6733-1: gnutls-bin, gnutls28, gnutls-doc, libgnutls-openssl27, libgnutls30, libgnutls28-dev, libgnutlsxx28, libgnutls-dane0, guile-gnutls