Bug 1027778 (CVE-2013-2930) - CVE-2013-2930 kernel: perf/ftrace: insufficient check in perf_trace_event_perm()
Summary: CVE-2013-2930 kernel: perf/ftrace: insufficient check in perf_trace_event_perm()
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2013-2930
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: Engineering1027779 Engineering1027781 Engineering1027783
Blocks: Embargoed1027789
TreeView+ depends on / blocked
 
Reported: 2013-11-07 12:06 UTC by Petr Matousek
Modified: 2021-02-17 07:11 UTC (History)
20 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-01-28 18:29:30 UTC

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2014:0100 0 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2014-01-28 22:38:58 UTC

Description Petr Matousek 2013-11-07 12:06:17 UTC 
A flaw was found in the way perf_trace_event_perm() function in the Linux kernel checked permissions for function tracer functionality, allowing unprivileged local user to enable function tracing.

As a result, unprivileged local user could make the system unusable (DoS).

Introduced by:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ced39002f5ea

Fixed by:
http://git.kernel.org/cgit/linux/kernel/git/rostedt/linux-trace.git/commit/?h=ftrace/urgent&id=d1356abac98cce8e7765186f8093da1442d74d1d
Comment 4 Petr Matousek 2013-11-07 12:51:08 UTC 
Statement:

This issue does not affect the version of the kernel package as shipped with Red Hat Enterprise Linux 5 and 6.
Comment 5 Jarod Wilson 2013-12-05 14:09:18 UTC 
Patch(es) available on kernel-3.10.0-58.el7
Comment 7 Jarod Wilson 2013-12-05 20:13:48 UTC 
This is the tracking bug, not the RHEL7 bug, not quite sure how that didn't get caught at commit time. Fixing...
Comment 12 errata-xmlrpc 2014-01-28 17:40:46 UTC 
This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2014:0100 https://rhn.redhat.com/errata/RHSA-2014-0100.html
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