CVE-2024-0553

high

Description

A vulnerability was found in GnuTLS. The response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from the response times of ciphertexts with correct PKCS#1 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.

References

https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html

https://gitlab.com/gnutls/gnutls/-/issues/1522

https://bugzilla.redhat.com/show_bug.cgi?id=2258412

https://access.redhat.com/security/cve/CVE-2024-0553

https://access.redhat.com/errata/RHSA-2024:2094

https://access.redhat.com/errata/RHSA-2024:1383

https://access.redhat.com/errata/RHSA-2024:1108

https://access.redhat.com/errata/RHSA-2024:1082

https://access.redhat.com/errata/RHSA-2024:0796

https://access.redhat.com/errata/RHSA-2024:0627

https://access.redhat.com/errata/RHSA-2024:0533

Details

Source: Mitre, NVD

Published: 2024-01-16

Updated: 2024-09-16

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity: High