CVE-2016-7444

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Summary

CVECVE-2016-7444
StatePUBLISHED
Assignerdebian
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-09-27 15:59:12 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.0 7.5 HIGH from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS: 0.010210000 probability, percentile 0.773520000 (date 2026-05-07)

Problem Types: CWE-264 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None

AV:N/AC:L/Au:N/C:N/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gnu Gnutls 3.5.0 All All All
Application Gnu Gnutls 3.5.1 All All All
Application Gnu Gnutls 3.5.2 All All All
Application Gnu Gnutls 3.5.3 All All All
Application Gnu Gnutls All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
ocsp: corrected the comparison of the serial size in OCSP response (964632f3) · Commits · gnutls / Gnutls · GitLab af854a3a-2127-422b-91ae-364da2661108 gitlab.com Patch
GnuTLS af854a3a-2127-422b-91ae-364da2661108 www.gnutls.org Vendor Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
GnuTLS GNUTLS-SA-2016-3 Certificate Validation Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
[gnutls-devel] OCSP certificate check af854a3a-2127-422b-91ae-364da2661108 lists.gnupg.org Mailing List, Third Party Advisory
[security-announce] openSUSE-SU-2017:0386-1: important: Security update af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 672230 EulerOS Security Update for gnutls (EulerOS-SA-2022-2609)

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