Bug 440788

Summary:	Kernel : Multiple Vulnerabilities (CVE-2010-4243,CVE-2012-4398)
Product:	Gentoo Security	Reporter:	Agostino Sarubbo <ago>
Component:	Kernel	Assignee:	Gentoo Kernel Security <security-kernel>
Status:	RESOLVED OBSOLETE
Severity:	normal	CC:	kernel
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Agostino Sarubbo gentoo-dev

2012-11-01 17:14:47 UTC

From https://secunia.com/advisories/50421/ :

Description
Multiple vulnerabilities have been reported in Linux Kernel, which can be exploited by malicious,
local users or malicious people to cause a DoS (Denial of Service).

1) A NULL pointer dereference error when handling deletion of directory hierarchies can be
exploited to cause a kernel crash by running "rm -rf" on a large directory hierarchy.

Successful exploitation requires an ext4 filesystem on a RAID device.

2) A NULL pointer dereference error in the i.MX clock infrastructure due to missing clock
conversion can be exploited to cause a kernel crash by e.g. tricking a user into playing a
specially crafted WAV file using aplay.

3) An error while handling an out-of-memory condition can be exploited to exhaust all memory
resources.

4) An error due to lack of synchronisation while handling socket options can be exploited to cause
a crash.

Solution
Update to version 3.4.10 or 3.5.3.

Provided and/or discovered by
1) The vendor credits Maciej Zenczykowski and Marti Raudsepp.
2) The vendor credits Javier Martin.
3) Tetsuo Handa via Ubuntu bug report.
4) Petr Matousek, Red Hat Security Response Team via OSS-SEC mailing list.

Changelog
Further details available in Customer Area

Original Advisory
Kernel.org:
http://www.kernel.org/pub/linux/kernel/v3.0/ChangeLog-3.4.10
http://www.kernel.org/pub/linux/kernel/v3.0/ChangeLog-3.5.3

Tetsuo Handa:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/963685

Petr Matousek:
http://seclists.org/oss-sec/2012/q3/344

Comment 1 Aaron Bauman (RETIRED) gentoo-dev

2018-04-04 18:19:20 UTC

There are no longer any 2.x or <3.4 kernels available in the repository with the exception of sys-kernel/xbox-sources which is unsupported by security.