Vulnerability Description
The fuse_direct_io function in fs/fuse/file.c in the fuse subsystem in the Linux kernel before 2.6.32-rc7 might allow attackers to cause a denial of service (invalid pointer dereference and OOPS) via vectors possibly related to a memory-consumption attack.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 2.6.32 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
- http://secunia.com/advisories/37909
- http://secunia.com/advisories/38017
- http://support.avaya.com/css/P8/documents/100073666
- http://www.debian.org/security/2010/dsa-2005
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc7
- http://www.openwall.com/lists/oss-security/2009/11/19/1
- http://www.openwall.com/lists/oss-security/2009/11/24/5
- http://www.redhat.com/support/errata/RHSA-2010-0041.html
- http://www.securityfocus.com/bid/37069
- https://bugzilla.redhat.com/show_bug.cgi?id=538734
FAQ
What is CVE-2009-4021?
CVE-2009-4021 is a vulnerability with a CVSS score of 4.9 (MEDIUM). The fuse_direct_io function in fs/fuse/file.c in the fuse subsystem in the Linux kernel before 2.6.32-rc7 might allow attackers to cause a denial of service (invalid pointer dereference and OOPS) via ...
How severe is CVE-2009-4021?
CVE-2009-4021 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-4021?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.