Bug 999646 (CVE-2016-7444) - VUL-1: CVE-2016-7444 gnutls: Incorrect certificate validation when using OCSP responses (GNUTLS-SA-2016-3)
Summary: VUL-1: CVE-2016-7444 gnutls: Incorrect certificate validation when using OCSP...
Status: RESOLVED FIXED
Alias: CVE-2016-7444
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Minor
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/172720/
Whiteboard: CVSSv2:RedHat:CVE-2016-7444:4.3:(AV:N...
Keywords:
Depends on:
Blocks:
 
Reported: 2016-09-19 11:44 UTC by Victor Pereira
Modified: 2019-05-01 17:22 UTC (History)
3 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description Victor Pereira 2016-09-19 11:44:50 UTC 
rh#1374266

It was found an issue in certificate validation using OCSP responses caused by not verifying the serial length, which can falsely report a certificate as valid.

Upstream patch:

https://gitlab.com/gnutls/gnutls/commit/964632f37dfdfb914ebc5e49db4fa29af35b1de9

External References:

https://www.gnutls.org/security.html
https://lists.gnupg.org/pipermail/gnutls-devel/2016-September/008146.html


References:
https://bugzilla.redhat.com/show_bug.cgi?id=1374266
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-7444
http://seclists.org/oss-sec/2016/q3/549
Comment 1 Swamp Workflow Management 2016-09-19 22:00:14 UTC 
bugbot adjusting priority
Comment 9 Swamp Workflow Management 2017-02-01 11:09:57 UTC 
SUSE-SU-2017:0348-1: An update that fixes 5 vulnerabilities is now available.

Category: security (important)
Bug References: 1005879,1018832,999646
CVE References: CVE-2016-7444,CVE-2016-8610,CVE-2017-5335,CVE-2017-5336,CVE-2017-5337
Sources used:
SUSE Linux Enterprise Software Development Kit 12-SP2 (src):    gnutls-3.2.15-16.1
SUSE Linux Enterprise Software Development Kit 12-SP1 (src):    gnutls-3.2.15-16.1
SUSE Linux Enterprise Server for Raspberry Pi 12-SP2 (src):    gnutls-3.2.15-16.1
SUSE Linux Enterprise Server 12-SP2 (src):    gnutls-3.2.15-16.1
SUSE Linux Enterprise Server 12-SP1 (src):    gnutls-3.2.15-16.1
SUSE Linux Enterprise Desktop 12-SP2 (src):    gnutls-3.2.15-16.1
SUSE Linux Enterprise Desktop 12-SP1 (src):    gnutls-3.2.15-16.1
Comment 10 Andreas Stieger 2017-02-04 08:55:55 UTC 
release leap
Comment 11 Swamp Workflow Management 2017-02-04 14:07:58 UTC 
openSUSE-SU-2017:0386-1: An update that fixes 5 vulnerabilities is now available.

Category: security (important)
Bug References: 1005879,1018832,999646
CVE References: CVE-2016-7444,CVE-2016-8610,CVE-2017-5335,CVE-2017-5336,CVE-2017-5337
Sources used:
openSUSE Leap 42.2 (src):    gnutls-3.2.15-9.1
openSUSE Leap 42.1 (src):    gnutls-3.2.15-8.1