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CVE-2008-3833

4.9 · MEDIUM

The generic_file_splice_write function in fs/splice.c in the Linux kernel before 2.6.19 does not properly strip setuid and setgid bits when there is a write to a file, which allows local users to g…

Published Oct 3, 2008linuxCWE-264EPSS 0.42%

Overview

CVE-2008-3833 is a medium-severity vulnerability affecting linux linux_kernel. It was published on October 3, 2008 and has a CVSS 2.0 base score of 4.9 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The generic_file_splice_write function in fs/splice.c in the Linux kernel before 2.6.19 does not properly strip setuid and setgid bits when there is a write to a file, which allows local users to gain the privileges of a different group, and obtain sensitive information or possibly have unspecified other impact, by splicing into an inode in order to create an executable file in a setgid directory, a different vulnerability than CVE-2008-4210.

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

Refgit.kernel.org/?p=linux/kernel/git/stable/linux-2.6.19.y.git%3Ba=commit%3Bh=8c34e2d63231d4bf4852bac8521883944d770fe3Reflists.opensuse.org/opensuse-security-announce/2008-11/msg00001.htmlRefopenwall.com/lists/oss-security/2008/10/03/1Refsecunia.com/advisories/32237Refsecunia.com/advisories/32485Refsecunia.com/advisories/32759Refwww.debian.org/security/2008/dsa-1653Refwww.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.19/ChangeLog-2.6.19-rc3Refwww.redhat.com/support/errata/RHSA-2008-0957.htmlRefwww.securityfocus.com/bid/31567

How CyberStrike helps

Frequently asked questions

What is CVE-2008-3833?

CVE-2008-3833 is a medium-severity vulnerability affecting linux linux_kernel. It was published on October 3, 2008 and has a CVSS 2.0 base score of 4.9 (MEDIUM).

How severe is CVE-2008-3833?

This vulnerability has a CVSS 2.0 base score of 4.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2008-3833?

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-2008-3833?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2008-3833 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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