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CVE-2009-2910

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Date: October 20, 2009

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.

Language: C

Severity Score

Related Resources (28)

http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html
http://support.avaya.com/css/P8/documents/100073666
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
http://www.redhat.com/support/errata/RHSA-2009-1671.html
http://lkml.org/lkml/2009/10/1/164
http://secunia.com/advisories/37351
http://marc.info/?l=oss-security&m=125442304214452&w=2
https://rhn.redhat.com/errata/RHSA-2010-0046.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2009-2910
http://www.ubuntu.com/usn/usn-864-1
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7359
http://secunia.com/advisories/37075
http://marc.info/?l=oss-security&m=125444390112831&w=2
http://git.kernel.org/?p=linux/kernel/git/x86/linux-2.6-tip.git%3Ba=commit%3Bh=24e35800cdc4350fc34e2bed37b608a9e13ab3b6
https://rhn.redhat.com/errata/RHSA-2009-1540.html
http://secunia.com/advisories/36927
https://nvd.nist.gov/vuln/detail/CVE-2009-2910
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html
http://www.openwall.com/lists/oss-security/2009/10/02/1
https://bugzilla.redhat.com/show_bug.cgi?id=526788
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.4
http://www.securityfocus.com/bid/36576
https://rhn.redhat.com/errata/RHSA-2010-0095.html
http://marc.info/?l=oss-security&m=125511635004768&w=2
https://access.redhat.com/security/cve/CVE-2009-2910
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10823
https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00483.html
https://www.mend.io/vulnerability-database/CVE-2009-2910

Severity Score

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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