Vulnerability CVE-2009-2910

Vulnerability CVE-2009-2910

Published: 2009-10-20 Modified: 2012-02-13

Description:

arch/x86/ia32/ia32entry.S in the Linux kernel before 2.6.31.4 on the x86_64 platform does not clear certain kernel registers before a return to user mode, which allows local users to read register values from an earlier process by switching an ia32 process to 64-bit mode.

See advisories in our WLB2 database:

	Topic	Author	Date
Low	Linux Kernel information leak issue	Fedora Team	22.10.2009

Type:

CWE-200

(Information Exposure)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:N/A:N)

CVSS Base Score	Impact Subscore	Exploitability Subscore
4.9/10	6.9/10	3.9/10

Exploit range	Attack complexity	Authentication
Local	Low	No required
Confidentiality impact	Integrity impact	Availability impact
Complete	None	None

Affected software
Linux -> Kernel
Linux -> Linux kernel

References:

http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git;a=commit;h=24e35800cdc4350fc34e2bed37b608a9e13ab3b6

http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html

http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html

http://lkml.org/lkml/2009/10/1/164

http://marc.info/?l=oss-security&m=125442304214452&w=2

http://marc.info/?l=oss-security&m=125444390112831&w=2

http://marc.info/?l=oss-security&m=125511635004768&w=2

http://support.avaya.com/css/P8/documents/100073666

http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.4

http://www.openwall.com/lists/oss-security/2009/10/02/1

http://www.redhat.com/support/errata/RHSA-2009-1671.html

http://www.securityfocus.com/bid/36576

http://www.ubuntu.com/usn/usn-864-1

https://bugzilla.redhat.com/show_bug.cgi?id=526788

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10823

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7359

https://rhn.redhat.com/errata/RHSA-2009-1540.html

https://rhn.redhat.com/errata/RHSA-2010-0046.html

https://rhn.redhat.com/errata/RHSA-2010-0095.html

https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00483.html

Vulnerability CVE-2009-2910

arch/x86/ia32/ia32entry.S in the Linux kernel before 2.6.31.4 on the x86_64 platform does not clear certain kernel registers before a return to user mode, which allows local users to read register values from an earlier process by switching an ia32 process to 64-bit mode.

See advisories in our WLB2 database:

Low

Linux Kernel information leak issue

CWE-200

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:N/A:N)

4.9/10

6.9/10

3.9/10

Local

Low

No required

Complete

None

None

Affected software

References: