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…

Description

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.

Scores

EPSS (exploitation in 30 days)

3.5% · top 11% of all CVEs (5 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Weakness

• n/a
• CWE-119 (opens in a new tab)All about CWE-119 and its CVEs

Affected products

• n/a

  • affected n/a

References (28)

• http://www.vmware.com/security/advisories/VMSA-2010-0017.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• http://isc.sans.edu/diary.html?storyid=9574 (opens in a new tab)x_refsource_MISCx_transferred
• ADV-2010-3083 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• ADV-2010-3117 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• http://sota.gen.nz/compat1/ (opens in a new tab)x_refsource_MISCx_transferred
• MDVSA-2010:198 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• https://access.redhat.com/kb/docs/DOC-40265 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 20101130 VMSA-2010-0017 VMware ESX third party update for Service Console kerne (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 42384 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 20100916 Workaround for Ac1db1tch3z exploit. (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
• SUSE-SA:2011:007 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• RHSA-2010:0842 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• MDVSA-2010:247 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• ADV-2011-0298 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• RHSA-2010:0882 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.36-rc4-git2.log (opens in a new tab)x_refsource_CONFIRMx_transferred
• SUSE-SA:2010:050 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• http://blog.ksplice.com/2010/09/cve-2010-3081/ (opens in a new tab)x_refsource_MISCx_transferred
• 43315 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• SUSE-SR:2010:017 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• http://www.vmware.com/security/advisories/VMSA-2011-0003.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• 20100916 Ac1db1tch3z vs x86_64 Linux Kernel (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c41d68a513c71e35a14f66d71782d27a79a81ea6 (opens in a new tab)x_refsource_CONFIRMx_transferred
• RHSA-2010:0758 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 20110211 VMSA-2011-0003 Third party component updates for VMware vCenter Server, vCenter Update Manager, ESXi and ESX (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=634457 (opens in a new tab)x_refsource_CONFIRMx_transferred
• MDVSA-2010:214 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
• [oss-security] 20100916 CVE-2010-3081 kernel: 64-bit Compatibility Mode Stack Pointer Underflow (opens in a new tab)mailing-listx_refsource_MLISTx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2010-3081](https://trackcve.app/badge/CVE-2010-3081.svg)](https://trackcve.app/cve/CVE-2010-3081)

Record last updated 7 Aug 2024, 02:55 UTC.