Bug 970873 (CVE-2013-2141)

Summary: CVE-2013-2141 Kernel: signal: information leak in tkill/tgkill
Product: [Other] Security Response Reporter: Prasad Pandit <ppandit>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: agordeev, bhu, davej, dhoward, esammons, fhrbata, gansalmon, iboverma, itamar, jforbes, jkacur, jonathan, jrusnack, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, mcressma, nobody, plougher, rt-maint, rvrbovsk, 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: 2014-11-21 10:37:27 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: 970874, 970875, 970876, 970878, 970879, 970880    
Bug Blocks: 970311    

Description Prasad Pandit 2013-06-05 07:00:26 UTC 
Linux kernel which supports tkill/tgkill routines is vulnerable to an
information leakage flaw. It occurs when routine tkill(2) or tgkill(2) is used
send signal to thread.

A user/program could use this flaw to leak kernel memory bytes.

Upstream fix:
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 -> https://git.kernel.org/linus/b9e146d8eb3b9ecae5086d373b50fa0c1f3e7f0f

Reference:
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 -> http://www.openwall.com/lists/oss-security/2013/06/02/1
Comment 1 Prasad Pandit 2013-06-05 07:02:37 UTC 
Statement:

(none)
Comment 4 errata-xmlrpc 2013-09-16 17:05:50 UTC 
This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2013:1264 https://rhn.redhat.com/errata/RHSA-2013-1264.html
Comment 5 errata-xmlrpc 2013-09-26 17:21:58 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2013:1292 https://rhn.redhat.com/errata/RHSA-2013-1292.html
Comment 6 errata-xmlrpc 2013-12-12 19:23:59 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:1801 https://rhn.redhat.com/errata/RHSA-2013-1801.html