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CVE-2016-7444

Date: September 27, 2016

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.

Language: C

Severity Score

Related Resources (11)

https://lists.gnupg.org/pipermail/gnutls-devel/2016-September/008146.html
https://www.gnutls.org/security.html
https://security-tracker.debian.org/tracker/CVE-2016-7444
https://gitlab.com/gnutls/gnutls/commit/964632f37dfdfb914ebc5e49db4fa29af35b1de9
https://nvd.nist.gov/vuln/detail/CVE-2016-7444
https://access.redhat.com/errata/RHSA-2017:2292
https://access.redhat.com/security/cve/CVE-2016-7444
https://security.alpinelinux.org/vuln/CVE-2016-7444
http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00005.html
http://www.securityfocus.com/bid/92893
https://www.mend.io/vulnerability-database/CVE-2016-7444

Severity Score

Weakness Type (CWE)

Permissions, Privileges, and Access Control

CWE-264

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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