Vulnerability in GNU Gnutls
CVE-2023-5981
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.013 (69.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- GNU Gnutls
- Debian Linux — versions 10.0
- Fedoraproject Fedora — versions 37, 38
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:3.6.16-8.el8_9
- Red Hat Enterprise Linux 8.6 Extended Update Support — versions 0:3.6.16-5.el8_6.2
- Red Hat Enterprise Linux 8.8 Extended Update Support — versions 0:3.6.16-7.el8_8.1
- 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_2.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2024:0155 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2024:0319 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2024:0399 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2024:0451 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2024:0533 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2024:1383 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2024:2094 (vendor-advisory, Third Party Advisory)
- access.redhat.com/security/cve/CVE-2023-5981 (Third Party Advisory, vdb-entry, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Third Party Advisory, Issue Tracking)
- gnutls.org/security-new.html (Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-5981?
- CVE-2023-5981 is a medium-severity vulnerability in GNU Gnutls, classified under CWE-208. CVSS score: 5.9/10. Published 2023-11-28.
- How severe is CVE-2023-5981?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2023-5981 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.