CVE-2024-0553 Information

Description

A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS1 v1.5 padding. This issue may allow a remote attacker to perform a timing side-channel attack in the RSA-PSK key exchange potentially leading to the leakage of sensitive data. CVE-2024-0553 is designated as an incomplete resolution for CVE-2023-5981.

Reference

https://access.redhat.com/security/cve/CVE-2024-0553 https://bugzilla.redhat.com/show_bug.cgi?id=2258412 https://gitlab.com/gnutls/gnutls/-/issues/1522 https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html