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.
Affected products
- Canonical / Ubuntu Linux6.06 – 6.06
- Canonical / Ubuntu Linux9.10 – 9.10
- Canonical / Ubuntu Linux9.04 – 9.04
- Canonical / Ubuntu Linux8.10 – 8.10
- Canonical / Ubuntu Linux8.04 – 8.04
- fedoraproject / fedora10 – 10
- Linux / Linux kernel2.6.31.4
- openSUSE / opensuse11.0 – 11.0
- RedHat / enterprise_linux_desktop5.0 – 5.0
- RedHat / enterprise_linux_eus5.4 – 5.4
- RedHat / enterprise_linux_server5.0 – 5.0
- RedHat / enterprise_linux_workstation5.0 – 5.0
- RedHat / virtualization5 – 5
- SUSE / linux_enterprise_debuginfo10 – 10
- SUSE / linux_enterprise_desktop10 – 10
- SUSE / linux_enterprise_server9 – 9
- SUSE / linux_enterprise_server10 – 10
- SUSE / linux_enterprise_software_development_kit10 – 10
References
- MISChttp://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.4
- MISChttp://www.redhat.com/support/errata/RHSA-2009-1671.html
- MISChttp://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git%3Ba=commit%3Bh=24e35800cdc4350fc34e2bed37b608a9e13ab3b6
- MISChttps://rhn.redhat.com/errata/RHSA-2009-1540.html
- VENDOR_ADVISORYhttp://www.ubuntu.com/usn/usn-864-1
- VENDOR_ADVISORYhttp://secunia.com/advisories/36927
- MISChttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7359
- VENDOR_ADVISORYhttp://secunia.com/advisories/37351
- VENDOR_ADVISORYhttp://secunia.com/advisories/37075
- MISChttp://support.avaya.com/css/P8/documents/100073666
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2009/10/02/1
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=526788
- MISChttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10823
- MISChttp://www.securityfocus.com/bid/36576
- MAILING_LISThttp://marc.info/?l=oss-security&m=125444390112831&w=2
- MAILING_LISThttp://marc.info/?l=oss-security&m=125511635004768&w=2
- MAILING_LISThttp://marc.info/?l=oss-security&m=125442304214452&w=2
- MISChttps://www.redhat.com/archives/fedora-package-announce/2009-October/msg00483.html
- MISChttps://rhn.redhat.com/errata/RHSA-2010-0095.html
- MISChttps://rhn.redhat.com/errata/RHSA-2010-0046.html
- MISChttp://lkml.org/lkml/2009/10/1/164
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html