Home/CVE/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 verif
CVE

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 verif

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 validation mechanism via vectors involving trailing bytes left by gnutls_malloc.

HIGH · CVSS 7.5 EPSS 0.01392
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

2
gnu gnutls<= 3.4.14
gnu gnutlsall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · security@debian.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 Sep 2016 · 03:59 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
⚑

Vendor Advisories

4
rhsaRHSA-2017:2292Moderate
usnUSN-3183-1
suse-csafSUSE-SU-2017:0348-1
cisa-csafcisa-csaf-csaf_files-OT-white-2019-icsa-19-155-01
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00005.html
http://www.securityfocus.com/bid/92893
https://gitlab.com/gnutls/gnutls/commit/964632f37dfdfb914ebc5e49db4fa29af35b1de9Patch
https://lists.gnupg.org/pipermail/gnutls-devel/2016-September/008146.htmlMailing ListThird Party Advisory
https://www.gnutls.org/security.htmlVendor Advisory
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