Vulnerability in Gnu Gnutls
CVE-2016-7444
The gnutls_ocsp_resp_check_crt function in lib/x509/ocsp.c in GnuTLS before 3.4.15 and 3.5.x before 3.5.4 does not verify the serial length of an OCSP response, which might allow remote attackers to bypass an intended certificate validatio…
EPSS: 0.014 (80.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Gnu Gnutls — versions 3.5.0, 3.5.1, 3.5.2
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 92893 (vdb-entry, x_refsource_BID)
- security@debian.org (x_refsource_CONFIRM, Patch)
- RHSA-2017:2292 (x_refsource_REDHAT, vendor-advisory)
- openSUSE-SU-2017:0386 (vendor-advisory, x_refsource_SUSE)
- [gnutls-devel] 20160902 OCSP certificate check (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@debian.org (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2016-7444?
- CVE-2016-7444 is a high-severity vulnerability in Gnu Gnutls, classified under CWE-264. CVSS score: 7.5/10. Published 2016-09-27.
- How severe is CVE-2016-7444?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-7444 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.