Bug 729808 (CVE-2011-2905)

Summary: CVE-2011-2905 kernel: perf tools: may parse user-controlled configuration file
Product: [Other] Security Response Reporter: Vincent Danen <vdanen>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: anton, aquini, arozansk, davej, fhrbata, gansalmon, itamar, jbenc, jolsa, jonathan, kernel-maint, kernel-mgr, kmcmartin, lwang, madhu.chinakonda, sforsber, tcallawa
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: public=20110807,reported=20110807,source=oss-security,impact=low,cvss2=2.6/AV:L/AC:H/Au:N/C:N/I:P/A:P,fedora-all/kernel=affected,rhel-6/kernel=affected,mrg-2/realtime-kernel=affected,rhel-4/kernel=notaffected,rhel-5/kernel=notaffected
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-05-04 02:53:18 EDT Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Bug Depends On: 729809, 730203, 730204, 730205, 761360    
Bug Blocks: 729837    

Description Vincent Danen 2011-08-10 17:43:21 EDT
It was reported [1] that perf would look for configuration files in /etc/perfconfig, ~/.perfconfig, and ./config.  If ./config is not a perf configuration file, perf could fail or possibly do unexpected things.  If a privileged user was tricked into running perf in a directory containing a malicious ./config file, it could possibly lead to the execution of arbitrary commands.

A patch is available [2].

[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=632923
[2] http://marc.info/?l=linux-kernel&m=131256355026183
Comment 1 Vincent Danen 2011-08-10 17:47:38 EDT
Created kernel tracking bugs for this issue

Affects: fedora-all [bug 729809]
Comment 5 Eugene Teo (Security Response) 2011-08-12 03:05:06 EDT

This issue did not affect Red Hat Enterprise Linux 4 and 5 as they did not include support for perf. This did not affect Red Hat Enterprise MRG as it uses the perf package from Red Hat Enterprise Linux 6. This has been addressed in Red Hat Enterprise Linux 6 via https://rhn.redhat.com/errata/RHSA-2011-1465.html.
Comment 6 Eugene Teo (Security Response) 2011-10-02 23:01:52 EDT
Upstream commit: http://git.kernel.org/linus/aba8d056078e47350d85b06a9cabd5afcc4b72ea
Comment 7 errata-xmlrpc 2011-11-22 11:49:57 EST
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:1465 https://rhn.redhat.com/errata/RHSA-2011-1465.html