Bug 1069865 (CVE-2014-0092)

Summary: CVE-2014-0092 gnutls: incorrect error handling in certificate verification (GNUTLS-SA-2014-2)
Product: [Other] Security Response Reporter: Tomas Hoger <thoger>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: erik-fedora, jkurik, jorton, jrusnack, ktietz, mike, nmavrogi, pfrields, rjones, seceng-idm-qe-list, security-response-team, tmraz, vg.aetera
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: gnutls 3.1.22, gnutls 3.2.12 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-03-03 19:07:34 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1069888, 1069889, 1069890, 1069891, 1071795, 1071796, 1071797, 1071815, 1072808, 1072810, 1072812, 1072813, 1072814, 1072815, 1072864    
Bug Blocks: 1065093    
Attachments:
Description Flags
Patch from Nikos none

Description Tomas Hoger 2014-02-25 19:50:59 UTC
It was discovered that GnuTLS X.509 certificate verification code failed to properly handle certain errors that can occur during the certificate verification.  When such errors are encountered, GnuTLS would report successful verification of the certificate, even though verification should end with failure.  A specially-crafted certificate can be accepted by GnuTLS as valid even if it wasn't issued by any trusted Certificate Authority.  This can be used to perform man-in-the-middle attacks against applications using GnuTLS.

Comment 2 Tomas Hoger 2014-02-26 09:54:41 UTC
Acknowledgment:

This issue was discovered by Nikos Mavrogiannopoulos of the Red Hat Security Technologies Team.

Comment 3 Tomas Hoger 2014-02-26 10:04:49 UTC
Created attachment 867911 [details]
Patch from Nikos

Comment 6 Tomas Hoger 2014-03-03 07:50:10 UTC
Created mingw-gnutls tracking bugs for this issue:

Affects: fedora-all [bug 1071796]

Comment 7 Tomas Hoger 2014-03-03 07:50:15 UTC
Created gnutls tracking bugs for this issue:

Affects: fedora-all [bug 1071795]

Comment 8 Tomas Hoger 2014-03-03 07:50:18 UTC
Created mingw32-gnutls tracking bugs for this issue:

Affects: epel-5 [bug 1071797]

Comment 11 errata-xmlrpc 2014-03-03 18:26:02 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2014:0247 https://rhn.redhat.com/errata/RHSA-2014-0247.html

Comment 12 errata-xmlrpc 2014-03-03 18:26:15 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:0246 https://rhn.redhat.com/errata/RHSA-2014-0246.html

Comment 15 Fedora Update System 2014-03-06 08:16:54 UTC
gnutls-3.1.20-4.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 17 errata-xmlrpc 2014-03-12 18:19:28 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5.3 Long Life
  Red Hat Enterprise Linux 5.9 EUS - Server Only
  Red Hat Enterprise Linux 6.2 LongLife
  Red Hat Enterprise Linux 6.4 EUS - Server and Compute Node Only
  Red Hat Enterprise Linux 4 Extended Lifecycle Support
  Red Hat Enterprise Linux 5.6 Long Life
  Red Hat Enterprise Linux 6.3 EUS - Server and Compute Node Only

Via RHSA-2014:0288 https://rhn.redhat.com/errata/RHSA-2014-0288.html

Comment 18 Fedora Update System 2014-03-15 15:22:54 UTC
mingw-gnutls-3.1.22-1.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 19 Fedora Update System 2014-03-15 15:25:16 UTC
mingw-gnutls-3.1.22-1.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 20 errata-xmlrpc 2014-03-31 16:38:54 UTC
This issue has been addressed in following products:

  RHEV-H and Agents for RHEL-6

Via RHSA-2014:0339 https://rhn.redhat.com/errata/RHSA-2014-0339.html