Bug 282529 (CVE-2009-2698)

Summary:	Kernel: UDP NULL pointer dereference (CVE-2009-2698)
Product:	Gentoo Security	Reporter:	Alex Legler (RETIRED) <a3li>
Component:	Kernel	Assignee:	Gentoo Security <security>
Status:	RESOLVED FIXED
Severity:	normal	CC:	kernel
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=1e0c14f49d6b393179f423abbac47f85618d3d46
Whiteboard:	[ linux < 2.6.19 ]
Package list:		Runtime testing required:	---

Description Alex Legler (RETIRED) archtester

2009-08-24 07:49:59 UTC

Mark J. Cox in a RedHat bug:
Tavis Ormandy and Julien Tinnes, Google Security Team reported that Kernels <=
2.6.18.8 are vulnerable to a NULL pointer dereference issue when using MSG_MORE
on udp sockets.

Comment 1 Alex Legler (RETIRED) archtester

2009-08-27 20:42:51 UTC

CVE-2009-2698 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-2698):
  The UDP implementation in (1) net/ipv4/udp.c and (2) net/ipv6/udp.c
  in the Linux kernel before 2.6.19 allows local users to gain
  privileges or cause a denial of service (NULL pointer dereference and
  system crash) via vectors involving the MSG_MORE flag and a UDP
  socket.