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CVE-2010-2943

8.1 · HIGH

The xfs implementation in the Linux kernel before 2.6.35 does not look up inode allocation btrees before reading inode buffers, which allows remote authenticated users to read unlinked files, or re…

Published Sep 30, 2010linuxCWE-200EPSS 17.01%

Overview

CVE-2010-2943 is a high-severity vulnerability affecting linux linux_kernel. It was published on September 30, 2010 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

The xfs implementation in the Linux kernel before 2.6.35 does not look up inode allocation btrees before reading inode buffers, which allows remote authenticated users to read unlinked files, or read or overwrite disk blocks that are currently assigned to an active file but were previously assigned to an unlinked file, by accessing a stale NFS filehandle.

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_kernel>= 0, < 2.6.35Affected

References

Refarticle.gmane.org/gmane.comp.file-systems.xfs.general/33767Refarticle.gmane.org/gmane.comp.file-systems.xfs.general/33768Refarticle.gmane.org/gmane.comp.file-systems.xfs.general/33769Refarticle.gmane.org/gmane.comp.file-systems.xfs.general/33771Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1920779e67cbf5ea8afef317777c5bf2b8096188Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7124fe0a5b619d65b739477b3b55a20bf805b06dRefgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7b6259e7a83647948fa33a736cc832310c8d85aaRefoss.sgi.com/archives/xfs/2010-06/msg00191.htmlRefoss.sgi.com/archives/xfs/2010-06/msg00198.htmlRefsecunia.com/advisories/42758

How CyberStrike helps

Frequently asked questions

What is CVE-2010-2943?

CVE-2010-2943 is a high-severity vulnerability affecting linux linux_kernel. It was published on September 30, 2010 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2010-2943?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2010-2943?

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-2010-2943?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2010-2943 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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