Bug 462460 (CVE-2013-1848)

Summary:	Kernel : ext3: format string issues (CVE-2013-1848)
Product:	Gentoo Security	Reporter:	Agostino Sarubbo <ago>
Component:	Kernel	Assignee:	Gentoo Kernel Security <security-kernel>
Status:	RESOLVED FIXED
Severity:	normal	CC:	eric-f.garioud, kernel
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	http://www.openwall.com/lists/oss-security/2013/03/20/8
Whiteboard:
Package list:		Runtime testing required:	---

Description Agostino Sarubbo gentoo-dev

2013-03-20 10:25:24 UTC

From $URL :

ext3_msg() takes the printk prefix as the second parameter and the
format string as the third parameter. Two callers of ext3_msg omit the
prefix and pass the format string as the second parameter and the first
parameter to the format string as the third parameter. In both cases
this string comes from an arbitrary source.

An user able to mount ext3 filesystems could use this flaw to crash the
system or, potentially, increase their privileges.

Upstream fix:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8d0c2d10dd72c5292eda7a06231056a4c972e4cc

References:
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-1848

Comment 1 John Helmert III archtester

2021-10-25 00:29:04 UTC

Patch in mainline 3.9 onwards