CVE-2009-2910

Linux Kernel < 2.6.31.4 - Unauthorized Register Value Exposure via x86_64 ia32 Mode Switch

Title source: llm
STIX 2.1

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 (24)

Core 24
Core References
Third Party Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2009-1671.html
Third Party Advisory vendor-advisory x_refsource_redhat
https://rhn.redhat.com/errata/RHSA-2009-1540.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/usn-864-1
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/36927
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/37351
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/37075
Third Party Advisory x_refsource_confirm
http://support.avaya.com/css/P8/documents/100073666
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2009/10/02/1
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=526788
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/36576
Third Party Advisory mailing-list x_refsource_mlist
http://marc.info/?l=oss-security&m=125444390112831&w=2
Third Party Advisory mailing-list x_refsource_mlist
http://marc.info/?l=oss-security&m=125511635004768&w=2
Third Party Advisory mailing-list x_refsource_mlist
http://marc.info/?l=oss-security&m=125442304214452&w=2
Third Party Advisory vendor-advisory x_refsource_fedora
https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00483.html
Third Party Advisory vendor-advisory x_refsource_redhat
https://rhn.redhat.com/errata/RHSA-2010-0095.html
Third Party Advisory vendor-advisory x_refsource_redhat
https://rhn.redhat.com/errata/RHSA-2010-0046.html
Patch, Third Party Advisory mailing-list x_refsource_mlist
http://lkml.org/lkml/2009/10/1/164
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html

Scores

EPSS 0.0005
EPSS Percentile 16.3%

Details

CWE
CWE-200
Status published
Products (18)
canonical/ubuntu_linux 6.06
canonical/ubuntu_linux 8.04
canonical/ubuntu_linux 8.10
canonical/ubuntu_linux 9.04
canonical/ubuntu_linux 9.10
fedoraproject/fedora 10
linux/linux_kernel < 2.6.31.4
opensuse/opensuse 11.0
redhat/enterprise_linux_desktop 5.0
redhat/enterprise_linux_eus 5.4
... and 8 more
Published Oct 20, 2009
Tracked Since Feb 18, 2026