215000 – Kernel <2.6.22 RLIMIT_CPU could be avoided (CVE-2008-1294)

Bug 215000 - Kernel <2.6.22 RLIMIT_CPU could be avoided (CVE-2008-1294)

Summary: Kernel <2.6.22 RLIMIT_CPU could be avoided (CVE-2008-1294)

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Security
Classification:	Unclassified
Component:	Kernel (show other bugs)
Hardware:	All Linux

Importance:	High minor (vote)
Assignee:	Gentoo Security

URL:	https://launchpad.net/bugs/107209
Whiteboard:	[linux >= 2.6.17 < 2.6.22]
Keywords:

Depends on:
Blocks:

Reported:	2008-03-27 01:14 UTC by Robert Buchholz (RETIRED)
Modified:	2013-09-03 05:14 UTC (History)
CC List:	1 user (show)

See Also:
Package list:
Runtime testing required:	---

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.

Description Robert Buchholz (RETIRED) gentoo-dev

2008-03-27 01:14:47 UTC

As discovered here today, the change in Kernel 2.6.17 intended to inhibit
users from setting RLIMIT_CPU to 0 (as that is equivalent to unlimited) by
"cheating" and setting it to 1 in such a case, does not make a difference,
as the check is done in the wrong place (too late), and only applies to the
profiling code.

Bugs:
  https://launchpad.net/bugs/107209
  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=419706

Fixed in 2.6.22:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=9926e4c74300c4b31dee007298c6475d33369df0

Comment 1 unnamedrambler 2008-03-27 17:00:59 UTC

proposed

[linux >= 2.6.17 < 2.6.22]
9926e4c74300c4b31dee007298c6475d33369df0

Comment 2 Robert Buchholz (RETIRED) gentoo-dev

2008-03-27 20:55:55 UTC

sounds good :-)