Bug 922314 (CVE-2012-6541)

Summary: CVE-2012-6541 Kernel: dccp: informaion leak via getsockopt(DCCP_SOCKOPT_CCID_TX_INFO)
Product: [Other] Security Response Reporter: Prasad Pandit <ppandit>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: agordeev, anton, bhu, davej, dhoward, esammons, fhrbata, gansalmon, iboverma, itamar, jforbes, jkacur, jonathan, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, mcressma, plougher, rt-maint, rvrbovsk, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-06-09 18:18:50 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:    
Bug Blocks: 858947    

Description Prasad Pandit 2013-03-16 08:47:54 UTC
Linux kernel built with Datagram Congestion Control Protocol(DCCP) with
the TCP-Friendly Rate Control(TRFC) mechanism is vulnerable to an information
leakage flaw. It occurs while doing an getsockopt call on the CCID3 socket.

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

Upstream fix:
 -> https://git.kernel.org/linus/7b07f8eb75aa3097cdfd4f6eac3da49db787381d

 -> http://www.openwall.com/lists/oss-security/2013/03/14/21

Comment 1 Prasad Pandit 2013-03-16 08:53:05 UTC

This issue does not affect the versions of the kernel package as shipped with
Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.