Vulnerability in GNU 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.016 (75.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- GNU Gnutls
- Fedoraproject Fedora — versions 39
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:3.6.16-8.el8_9.1
- Red Hat Enterprise Linux 8.6 Extended Update Support — versions 0:3.6.16-5.el8_6.3
- Red Hat Enterprise Linux 8.8 Extended Update Support — versions 0:3.6.16-7.el8_8.2
- Red Hat Enterprise Linux 9 — versions 0:3.7.6-23.el9_3.3
- Red Hat Enterprise Linux 9.2 Extended Update Support — versions 0:3.7.6-21.el9_2.2
- Red Hat Rhodf-4.15-Rhel-9 — versions v4.15.0-37, v4.15.0-68, v4.15.0-158
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2024:0533 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:0627 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:0796 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:1082 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:1108 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:1383 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:2094 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2024-0553 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Third Party Advisory, Issue Tracking)
- gitlab.com/gnutls/gnutls/-/issues/1522 (Exploit, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2024-0553?
- CVE-2024-0553 is a high-severity vulnerability in GNU Gnutls, classified under Observable Discrepancy. CVSS score: 7.5/10. Published 2024-01-16.
- How severe is CVE-2024-0553?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-0553 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.