Bug 1067558 (CVE-2014-2039)

Summary: CVE-2014-2039 Kernel: s390: crash due to linkage stack instructions
Product: [Other] Security Response Reporter: Prasad Pandit <ppandit>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: agordeev, aquini, bhu, davej, dhoward, esammons, fhrbata, gansalmon, hannsj_uhl, iboverma, itamar, jforbes, jkacur, jkurik, jonathan, jross, jwboyer, kenneth.j.hall, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, matt, mcressma, nobody, npajkovs, pholasek, plougher, rt-maint, rvrbovsk, vg.aetera, vkrizan, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-06-23 06:51:02 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: 1059732, 1065399, 1067678, 1067679, 1068758    
Bug Blocks: 1064414    

Description Prasad Pandit 2014-02-20 16:13:00 UTC
Linux kernel built for the s390 architecture(CONFIG_S390) is vulnerable to a
crash due to low-address protection exception. It occurs when an application
uses a linkage stack instruction.

An unprivileged user/application could use this flaw to crash the system
resulting in DoS.

Upstream fix:
-------------
  -> https://git.kernel.org/linus/8d7f6690cedb83456edd41c9bd583783f0703bf0

Comment 1 Prasad Pandit 2014-02-20 16:16:35 UTC
Statement:

This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2.

Comment 3 Prasad Pandit 2014-02-21 20:10:18 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1068758]

Comment 4 Fedora Update System 2014-02-28 18:35:47 UTC
kernel-3.13.5-200.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2014-03-01 14:04:56 UTC
kernel-3.13.5-101.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 errata-xmlrpc 2014-06-19 17:53:09 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:0771 https://rhn.redhat.com/errata/RHSA-2014-0771.html