USN-6733-1: GnuTLS vulnerabilities

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)

attacker channel crash cve cve-2024 denial of service ecdsa gnutls information issue operations pem performing recover sensitive sensitive information service side-channel usn vulnerabilities