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 validation mechanism via vectors involving trailing bytes left by gnutls_malloc.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

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

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://gitlab.com/gnutls/gnutls/commit/964632f37dfdfb914ebc5e49db4fa29af35b1de9	Patch
https://lists.gnupg.org/pipermail/gnutls-devel/2016-September/008146.html	Mailing List Third Party Advisory
https://www.gnutls.org/security.html	Vendor Advisory
http://www.securityfocus.com/bid/92893
http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00005.html
https://access.redhat.com/errata/RHSA-2017:2292

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gnu:gnutls::::::::
	cpe:2.3:a:gnu:gnutls:3.5.1:::::::*
	cpe:2.3:a:gnu:gnutls:3.5.0:::::::*
	cpe:2.3:a:gnu:gnutls:3.5.3:::::::*
	cpe:2.3:a:gnu:gnutls:3.5.2:::::::*

Information

Published : 2016-09-27 08:59

Updated : 2018-01-04 18:31

NVD link : CVE-2016-7444

Mitre link : CVE-2016-7444

JSON object : View

CWE

CWE-264

Permissions, Privileges, and Access Controls

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Products Affected

gnu

gnutls

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