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USN-5550-1: GnuTLS vulnerabilities

4 August 2022

Several security issues were fixed in GnuTLS.

Releases

Packages

Details

It was discovered that GnuTLS incorrectly handled certain memory
operations. A remote attacker could possibly use this issue to cause GnuTLS
to crash, resulting in a denial of service. This issue only affected Ubuntu
18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2021-4209)

It was discovered that GnuTLS incorrectly handled the verification of
certain pkcs7 signatures. A remote attacker could use this issue to cause
GnuTLS to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2022-2509)

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

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

Related notices

  • USN-5750-1: gnutls-bin, gnutls28, libgnutls28-dev, gnutls-doc, libgnutls-openssl27, libgnutlsxx28, libgnutls-dev, guile-gnutls, libgnutls30