Ubuntu Security Notice 6733-2 - USN-6733-1 fixed vulnerabilities in GnuTLS. This update provides the corresponding updates for Ubuntu 24.04 LTS. 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. 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.
ddfa9b53cf55c5c796be4d398f38aed182745e8f5742e95f3b46d0343f9fcb73Ubuntu Security Notice 6733-1 - 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. 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.
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