Bug 461524 (CVE-2013-0914)

Summary:	Kernel : sa_restorer information leak (CVE-2013-0914)
Product:	Gentoo Security	Reporter:	Agostino Sarubbo <ago>
Component:	Kernel	Assignee:	Gentoo Kernel Security <security-kernel>
Status:	RESOLVED FIXED
Severity:	normal	CC:	kernel
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://bugzilla.redhat.com/show_bug.cgi?id=920499
Whiteboard:
Package list:		Runtime testing required:	---

Description Agostino Sarubbo gentoo-dev

2013-03-12 14:28:10 UTC

From $URL :

Linux kernel is vulnerable to an information leakage flaw. This occurs when
a process calls routine - sigaction() - to access - sa_restorer - parameter.
This parameter points to an address that belongs to its parent process'
address space.

A user could use this flaw to infer address layout of a process.

Reference:
----------
 -> https://lkml.org/lkml/2013/3/11/498
 -> http://www.openwall.com/lists/oss-security/2013/03/11/8

Comment 1 John Helmert III archtester

2021-10-25 00:14:17 UTC

Patch in mainline 3.9 onwards