A vulnerability was found in GnuTLS.
CVE-2024-0553
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.
Assessment
- CVSS
- 7.5 (v3.1)
- Severity
- High
- EPSS
- 1.61% chance of exploitation in the next 30 days
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 16 January 2024
- Last updated
- 5 November 2026
- Affected
- Red Hat · RHODF-4.15-RHEL-9 · RHOL-5.8-RHEL-9 · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 8.6 Extended Update Support
- Assigner
- redhat
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
At the source
References
- https://access.redhat.com/errata/RHSA-2024:0533
- https://access.redhat.com/errata/RHSA-2024:0627
- https://access.redhat.com/errata/RHSA-2024:0796
- https://access.redhat.com/errata/RHSA-2024:1082
- https://access.redhat.com/errata/RHSA-2024:1108
- https://access.redhat.com/errata/RHSA-2024:1383
- https://access.redhat.com/errata/RHSA-2024:2094
- 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
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