Bug 258593 (CVE-2008-6107)

Summary:	Kernel: <2.6.25.4 sys32_mremap, sparc_mmap_check, sparc64_mmap_check DOS (CVE-2008-6107)
Product:	Gentoo Security	Reporter:	Stefan Behte (RETIRED) <craig>
Component:	Kernel	Assignee:	Gentoo Security <security>
Status:	RESOLVED FIXED
Severity:	normal	CC:	kernel
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:	[linux <2.6.25.4]
Package list:		Runtime testing required:	---

Description Stefan Behte (RETIRED) gentoo-dev

2009-02-11 12:50:43 UTC

CVE-2008-6107 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-6107):
  The (1) sys32_mremap function in arch/sparc64/kernel/sys_sparc32.c,
  the (2) sparc_mmap_check function in arch/sparc/kernel/sys_sparc.c,
  and the (3) sparc64_mmap_check function in
  arch/sparc64/kernel/sys_sparc.c, in the Linux kernel before 2.6.25.4,
  omit some virtual-address range (aka span) checks when the mremap
  MREMAP_FIXED bit is not set, which allows local users to cause a
  denial of service (panic) via unspecified mremap calls, a related
  issue to CVE-2008-2137.

Comment 1 kfm 2009-07-21 21:48:02 UTC

Upstream patch:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=94d149c34cda933ff5096aca94bb23bf68602f4e

hardened-kernel unaffected at present time. Removing alias.

PS: genpatches-2.6.25-5 added 2.6.25.4