------------------------------------------------------------------------- Debian LTS Advisory DLA-3660-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Markus Koschany November 22, 2023 https://wiki.debian.org/LTS ------------------------------------------------------------------------- Package : gnutls28 Version : 3.6.7-4+deb10u11 CVE ID : CVE-2023-5981 Debian Bug : 1056188 A vulnerability was found in GnuTLS, a secure communications library, which may facilitate a timing attack to compromise a cryptographic system. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding. Only TLS ciphertext processing is affected. For Debian 10 buster, this problem has been fixed in version 3.6.7-4+deb10u11. We recommend that you upgrade your gnutls28 packages. For the detailed security status of gnutls28 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/gnutls28 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
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