CVE-2010-3081

The compat_alloc_user_space functions in include/asm/compat.h files in the Linux kernel before 2.6.36-rc4-git2 on 64-bit platforms do not properly allocate the userspace memory required for the 32-bit compatibility layer, which allows local users to gain privileges by leveraging the ability of the compat_mc_getsockopt function (aka the MCAST_MSFILTER getsockopt support) to control a certain length value, related to a "stack pointer underflow" issue, as exploited in the wild in September 2010.

• CWE-119

• http://archives.neohapsis.com/archives/fulldisclosure/2010-09/0273.htmlBroken Link
• http://archives.neohapsis.com/archives/fulldisclosure/2010-09/0278.htmlBroken Link
• http://blog.ksplice.com/2010/09/cve-2010-3081/Broken Link
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c41d68a513c71e35a14f66d71782d27a79a81ea6
• http://isc.sans.edu/diary.html?storyid=9574Patch, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlMailing List, Third Party Advisory
• http://marc.info/?l=oss-security&m=128461522230211&w=2Mailing List, Patch, Third Party Advisory
• http://secunia.com/advisories/42384Broken Link
• http://secunia.com/advisories/43315Broken Link
• http://sota.gen.nz/compat1/Broken Link
• http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.36-rc4-git2.logBroken Link
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:198Broken Link
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:214Broken Link
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:247Broken Link
• http://www.redhat.com/support/errata/RHSA-2010-0758.htmlBroken Link
• http://www.redhat.com/support/errata/RHSA-2010-0842.htmlBroken Link
• http://www.redhat.com/support/errata/RHSA-2010-0882.htmlBroken Link
• http://www.securityfocus.com/archive/1/514938/30/30/threadedThird Party Advisory, VDB Entry
• http://www.securityfocus.com/archive/1/516397/100/0/threadedThird Party Advisory, VDB Entry
• http://www.vmware.com/security/advisories/VMSA-2010-0017.htmlThird Party Advisory
• http://www.vmware.com/security/advisories/VMSA-2011-0003.htmlThird Party Advisory
• http://www.vupen.com/english/advisories/2010/3083Broken Link
• http://www.vupen.com/english/advisories/2010/3117Broken Link
• http://www.vupen.com/english/advisories/2011/0298Broken Link
• https://access.redhat.com/kb/docs/DOC-40265Exploit, Patch, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=634457Issue Tracking, Patch, Third Party Advisory
• http://archives.neohapsis.com/archives/fulldisclosure/2010-09/0273.htmlBroken Link
• http://archives.neohapsis.com/archives/fulldisclosure/2010-09/0278.htmlBroken Link
• http://blog.ksplice.com/2010/09/cve-2010-3081/Broken Link
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c41d68a513c71e35a14f66d71782d27a79a81ea6
• http://isc.sans.edu/diary.html?storyid=9574Patch, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlMailing List, Third Party Advisory
• http://marc.info/?l=oss-security&m=128461522230211&w=2Mailing List, Patch, Third Party Advisory
• http://secunia.com/advisories/42384Broken Link
• http://secunia.com/advisories/43315Broken Link
• http://sota.gen.nz/compat1/Broken Link
• http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.36-rc4-git2.logBroken Link
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:198Broken Link
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:214Broken Link
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:247Broken Link
• http://www.redhat.com/support/errata/RHSA-2010-0758.htmlBroken Link
• http://www.redhat.com/support/errata/RHSA-2010-0842.htmlBroken Link
• http://www.redhat.com/support/errata/RHSA-2010-0882.htmlBroken Link
• http://www.securityfocus.com/archive/1/514938/30/30/threadedThird Party Advisory, VDB Entry
• http://www.securityfocus.com/archive/1/516397/100/0/threadedThird Party Advisory, VDB Entry
• http://www.vmware.com/security/advisories/VMSA-2010-0017.htmlThird Party Advisory
• http://www.vmware.com/security/advisories/VMSA-2011-0003.htmlThird Party Advisory
• http://www.vupen.com/english/advisories/2010/3083Broken Link
• http://www.vupen.com/english/advisories/2010/3117Broken Link
• http://www.vupen.com/english/advisories/2011/0298Broken Link
• https://access.redhat.com/kb/docs/DOC-40265Exploit, Patch, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=634457Issue Tracking, Patch, Third Party Advisory

Published

Sep 24, 2010

Last Modified

Jun 16, 2026

Status

Modified

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