Bug 267239 (CVE-2009-1337)

Summary:	Kernel: <2.6.30-rc1 kernel/exit.c CAP_KILL local root (CVE-2009-1337)
Product:	Gentoo Security	Reporter:	Stefan Behte (RETIRED) <craig>
Component:	Kernel	Assignee:	Gentoo Security <security>
Status:	RESOLVED FIXED
Severity:	normal	CC:	hardened-kernel+disabled, kernel
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=432870dab85a2f69dc417022646cb9a70acf7f94
Whiteboard:	[linux <2.6.27.22] [linux >=2.6.28 <2.6.28.10] [linux >=2.6.29 <2.6.29.3]
Package list:		Runtime testing required:	---

Description Stefan Behte (RETIRED) gentoo-dev

2009-04-23 16:33:26 UTC

CVE-2009-1337 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-1337):
  The exit_notify function in kernel/exit.c in the Linux kernel before
  2.6.30-rc1 does not restrict exit signals when the CAP_KILL
  capability is held, which allows local users to send an arbitrary
  signal to a process by running a program that modifies the
  exit_signal field and then uses an exec system call to launch a
  setuid application.

Comment 1 Stefan Behte (RETIRED) gentoo-dev

2009-04-23 16:43:31 UTC

Sorry for bugspam!