Bug 1454621 (CVE-2017-7507)

Summary: CVE-2017-7507 gnutls: Crash upon receiving well-formed status_request extension
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bmcclain, cfergeau, dblechte, dominik.mierzejewski, eedri, erik-fedora, hkario, jv+fedora, lsurette, mgoldboi, michal.skrivanek, mike, nmavrogi, rh-spice-bugs, rjones, sardella, security-response-team, slawomir, srevivo, szidek, tmraz, ykaul
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
A null pointer dereference flaw was found in the way GnuTLS processed ClientHello messages with status_request extension. A remote attacker could use this flaw to cause an application compiled with GnuTLS to crash.
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-08 03:13:18 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1454411, 1455828, 1459795, 1459796, 1459797, 1459798    
Bug Blocks: 1415638, 1454623    

Description Andrej Nemec 2017-05-23 08:09:13 UTC
It was found that GnuTLS would crash when receiving a client hello message with status_request extension that has a non-empty responder_id_list.

Comment 1 Andrej Nemec 2017-05-23 08:09:23 UTC
Acknowledgments:

Name: Hubert Kario (Red Hat QE BaseOS Security team)

Comment 6 Andrej Nemec 2017-06-08 08:18:27 UTC
Created gnutls tracking bugs for this issue:

Affects: fedora-all [bug 1459795]


Created gnutls30 tracking bugs for this issue:

Affects: epel-6 [bug 1459797]


Created mingw-gnutls tracking bugs for this issue:

Affects: epel-7 [bug 1459796]
Affects: fedora-all [bug 1459798]

Comment 7 Andrej Nemec 2017-06-08 08:19:30 UTC
External References:

https://www.gnutls.org/security.html#GNUTLS-SA-2017-4

Comment 8 errata-xmlrpc 2017-08-01 08:50:28 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:2292 https://access.redhat.com/errata/RHSA-2017:2292