Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2009-2849

4.7 · MEDIUM

The md driver (drivers/md/md.c) in the Linux kernel before 2.6.30.2 might allow local users to cause a denial of service (NULL pointer dereference) via vectors related to "suspend_* sysfs attribute…

Published Aug 18, 2009linuxEPSS 0.47%

Overview

CVE-2009-2849 is a medium-severity vulnerability affecting linux linux_kernel. It was published on August 18, 2009 and has a CVSS 2.0 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The md driver (drivers/md/md.c) in the Linux kernel before 2.6.30.2 might allow local users to cause a denial of service (NULL pointer dereference) via vectors related to "suspend_* sysfs attributes" and the (1) suspend_lo_store or (2) suspend_hi_store functions. NOTE: this is only a vulnerability when sysfs is writable by an attacker.

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-2.6.30.y.git%3Ba=commit%3Bh=3c92900d9a4afb176d3de335dc0da0198660a244Reflists.vmware.com/pipermail/security-announce/2010/000082.htmlRefsecunia.com/advisories/36501Refsecunia.com/advisories/37105Refsecunia.com/advisories/38794Refsecunia.com/advisories/38834Refwww.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.2Refwww.openwall.com/lists/oss-security/2009/07/24/1Refwww.openwall.com/lists/oss-security/2009/07/26/1Refwww.securitytracker.com/id?1022961

How CyberStrike helps

Frequently asked questions

What is CVE-2009-2849?

CVE-2009-2849 is a medium-severity vulnerability affecting linux linux_kernel. It was published on August 18, 2009 and has a CVSS 2.0 base score of 4.7 (MEDIUM).

How severe is CVE-2009-2849?

This vulnerability has a CVSS 2.0 base score of 4.7, 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-2009-2849?

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-2009-2849?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-2849 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.

Related MEDIUM CVEs from 2009

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999