CVE-2010-4258

2010-12-3000:00:00

ubuntu.com

6.2 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:H/Au:N/C:C/I:C/A:C

0.0004 Low

EPSS

Percentile

9.3%

JSON

The do_exit function in kernel/exit.c in the Linux kernel before 2.6.36.2
does not properly handle a KERNEL_DS get_fs value, which allows local users
to bypass intended access_ok restrictions, overwrite arbitrary kernel
memory locations, and gain privileges by leveraging a (1) BUG, (2) NULL
pointer dereference, or (3) page fault, as demonstrated by vectors
involving the clear_child_tid feature and the splice system call.

Bugs

<https://bugzilla.redhat.com/show_bug.cgi?id=659567>

OSVersionArchitecturePackageVersionFilename
ubuntu8.04noarchlinux< 2.6.24-29.88UNKNOWN
ubuntu10.04noarchlinux< 2.6.32-28.52UNKNOWN
ubuntu10.10noarchlinux< 2.6.35-25.43UNKNOWN
ubuntu11.04noarchlinux< 2.6.37-9.22UNKNOWN
ubuntu10.04noarchlinux-ec2< 2.6.32-312.24UNKNOWN
ubuntu10.04noarchlinux-fsl-imx51< 2.6.31-609.26UNKNOWN
ubuntu10.04noarchlinux-lts-backport-maverick< 2.6.35-25.44~lucid1UNKNOWN
ubuntu10.04noarchlinux-mvl-dove< 2.6.32-214.30UNKNOWN
ubuntu10.10noarchlinux-mvl-dove< 2.6.32-414.30UNKNOWN
ubuntu6.06noarchlinux-source-2.6.15< 2.6.15-57.97UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	8.04	noarch	linux	< 2.6.24-29.88	UNKNOWN
ubuntu	10.04	noarch	linux	< 2.6.32-28.52	UNKNOWN
ubuntu	10.10	noarch	linux	< 2.6.35-25.43	UNKNOWN
ubuntu	11.04	noarch	linux	< 2.6.37-9.22	UNKNOWN
ubuntu	10.04	noarch	linux-ec2	< 2.6.32-312.24	UNKNOWN
ubuntu	10.04	noarch	linux-fsl-imx51	< 2.6.31-609.26	UNKNOWN
ubuntu	10.04	noarch	linux-lts-backport-maverick	< 2.6.35-25.44~lucid1	UNKNOWN
ubuntu	10.04	noarch	linux-mvl-dove	< 2.6.32-214.30	UNKNOWN
ubuntu	10.10	noarch	linux-mvl-dove	< 2.6.32-414.30	UNKNOWN
ubuntu	6.06	noarch	linux-source-2.6.15	< 2.6.15-57.97	UNKNOWN