Gnutls: timing side-channel in the rsa-psk authentication
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 1.3%
exploitation probability
1.3%top 33% of all CVEs
observed exploitation
nono source reports it
A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS#1 v1.5 padding.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat · Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat · RHODF-4.15-RHEL-9Red Hat · RHOL-5.8-RHEL-9References
https://access.redhat.com/errata/RHSA-2024:0155https://access.redhat.com/errata/RHSA-2024:0319https://access.redhat.com/errata/RHSA-2024:0399https://access.redhat.com/errata/RHSA-2024:0451https://access.redhat.com/errata/RHSA-2024:0533https://access.redhat.com/errata/RHSA-2024:1383https://access.redhat.com/errata/RHSA-2024:2094https://access.redhat.com/security/cve/CVE-2023-5981https://bugzilla.redhat.com/show_bug.cgi?id=2248445https://gnutls.org/security-new.html#GNUTLS-SA-2023-10-23https://lists.debian.org/debian-lts-announce/2023/11/msg00016.htmlhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/