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CVE-2010-3081

7.8 · HIGH

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-…

Published Sep 24, 2010linuxCWE-119EPSS 3.53%

Overview

CVE-2010-3081 is a high-severity vulnerability affecting linux linux_kernel. It was published on September 24, 2010 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
linuxlinux_kernel0Affected

References

Refarchives.neohapsis.com/archives/fulldisclosure/2010-09/0273.htmlRefarchives.neohapsis.com/archives/fulldisclosure/2010-09/0278.htmlRefblog.ksplice.com/2010/09/cve-2010-3081/Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c41d68a513c71e35a14f66d71782d27a79a81ea6Refisc.sans.edu/diary.html?storyid=9574Reflists.opensuse.org/opensuse-security-announce/2010-09/msg00006.htmlReflists.opensuse.org/opensuse-security-announce/2010-10/msg00003.htmlReflists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlRefmarc.info/?l=oss-security&m=128461522230211&w=2Refsecunia.com/advisories/42384

How CyberStrike helps

Frequently asked questions

What is CVE-2010-3081?

CVE-2010-3081 is a high-severity vulnerability affecting linux linux_kernel. It was published on September 24, 2010 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2010-3081?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2010-3081?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2010-3081?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2010-3081 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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