CVE-2009-2910

MEDIUM

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.

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://secunia.com/advisories/36927

http://secunia.com/advisories/37075

http://secunia.com/advisories/37351

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

Details

Source: MITRE

Published: 2009-10-20

Updated: 2017-09-19

Type: CWE-200

Risk Information

CVSS v2.0

Base Score: 4.9

Vector: (AV:L/AC:L/Au:N/C:C/I:N/A:N)

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM