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CVE-2008-7256

1.2 · LOW

mm/shmem.c in the Linux kernel before 2.6.28-rc8, when strict overcommit is enabled and CONFIG_SECURITY is disabled, does not properly handle the export of shmemfs objects by knfsd, which allows at…

Published Jun 3, 2010linuxEPSS 0.34%

Overview

CVE-2008-7256 is a low-severity vulnerability affecting linux linux_kernel. It was published on June 3, 2010 and has a CVSS 2.0 base score of 1.2 (LOW).

This vulnerability has a CVSS 2.0 base score of 1.2, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

mm/shmem.c in the Linux kernel before 2.6.28-rc8, when strict overcommit is enabled and CONFIG_SECURITY is disabled, does not properly handle the export of shmemfs objects by knfsd, which allows attackers to cause a denial of service (NULL pointer dereference and knfsd crash) or possibly have unspecified other impact via unknown vectors. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-1643.

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/torvalds/linux-2.6.git%3Ba=commit%3Bh=1b79cd04fab80be61dcd2732e2423aafde9a4c1cRefwww.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.28/ChangeLog-2.6.28-rc8Refwww.mandriva.com/security/advisories?name=MDVSA-2010:198Refwww.openwall.com/lists/oss-security/2010/05/27/1Refbugzilla.redhat.com/show_bug.cgi?id=595970Refexchange.xforce.ibmcloud.com/vulnerabilities/59224Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1b79cd04fab80be61dcd2732e2423aafde9a4c1cRefwww.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.28/ChangeLog-2.6.28-rc8Refwww.mandriva.com/security/advisories?name=MDVSA-2010:198Refwww.openwall.com/lists/oss-security/2010/05/27/1

How CyberStrike helps

Frequently asked questions

What is CVE-2008-7256?

CVE-2008-7256 is a low-severity vulnerability affecting linux linux_kernel. It was published on June 3, 2010 and has a CVSS 2.0 base score of 1.2 (LOW).

How severe is CVE-2008-7256?

This vulnerability has a CVSS 2.0 base score of 1.2, rated LOW. 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-2008-7256?

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-2008-7256?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2008-7256 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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