Bug 1069865 - (CVE-2014-0092) CVE-2014-0092 gnutls: incorrect error handling in certificate verification (GNUTLS-SA-2014-2)
CVE-2014-0092 gnutls: incorrect error handling in certificate verification (G...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
: ---
: ---
Assigned To: Red Hat Product Security
impact=important,public=20140303,repo...
: Security
Depends On: 1069888 1069889 1069890 1069891 1071795 1071796 1071797 1071815 1072808 1072810 1072812 1072813 1072814 1072815 1072864
Blocks: 1065093
  Show dependency treegraph
 
Reported: 2014-02-25 14:50 EST by Tomas Hoger
Modified: 2015-11-24 10:44 EST (History)
13 users (show)

See Also:
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 14:07:34 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:


Attachments (Terms of Use)
Patch from Nikos (4.25 KB, patch)
2014-02-26 05:04 EST, Tomas Hoger
no flags Details | Diff

  None (edit)
Description Tomas Hoger 2014-02-25 14:50:59 EST
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 04:54:41 EST
Acknowledgment:

This issue was discovered by Nikos Mavrogiannopoulos of the Red Hat Security Technologies Team.
Comment 3 Tomas Hoger 2014-02-26 05:04:49 EST
Created attachment 867911 [details]
Patch from Nikos
Comment 6 Tomas Hoger 2014-03-03 02:50:10 EST
Created mingw-gnutls tracking bugs for this issue:

Affects: fedora-all [bug 1071796]
Comment 7 Tomas Hoger 2014-03-03 02:50:15 EST
Created gnutls tracking bugs for this issue:

Affects: fedora-all [bug 1071795]
Comment 8 Tomas Hoger 2014-03-03 02:50:18 EST
Created mingw32-gnutls tracking bugs for this issue:

Affects: epel-5 [bug 1071797]
Comment 11 errata-xmlrpc 2014-03-03 13:26:02 EST
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 13:26:15 EST
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 03:16:54 EST
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 14:19:28 EDT
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 11:22:54 EDT
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 11:25:16 EDT
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 12:38:54 EDT
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

Note You need to log in before you can comment on or make changes to this bug.