Vulnerability Description
The dispatch_discard_io function in drivers/block/xen-blkback/blkback.c in the Xen blkback implementation in the Linux kernel before 3.10.5 allows guest OS users to cause a denial of service (data loss) via filesystem write operations on a read-only disk that supports the (1) BLKIF_OP_DISCARD (aka discard or TRIM) or (2) SCSI UNMAP feature.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 3.10.4 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://people.canonical.com/~ubuntu-security/cve/2013/CVE-2013-2140.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.10.5
- http://www.openwall.com/lists/oss-security/2013/06/05/21
- http://www.ubuntu.com/usn/USN-1938-1
- http://www.ubuntu.com/usn/USN-1943-1
- http://www.ubuntu.com/usn/USN-1944-1
- http://www.ubuntu.com/usn/USN-1945-1
- http://www.ubuntu.com/usn/USN-1946-1
- http://www.ubuntu.com/usn/USN-1947-1
- http://www.ubuntu.com/usn/USN-2038-1
- http://www.ubuntu.com/usn/USN-2039-1
- https://bugzilla.redhat.com/show_bug.cgi?id=971146
- https://github.com/torvalds/linux/commit/604c499cbbcc3d5fe5fb8d53306aa0fae199010ExploitPatch
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
FAQ
What is CVE-2013-2140?
CVE-2013-2140 is a vulnerability with a CVSS score of 3.8 (LOW). The dispatch_discard_io function in drivers/block/xen-blkback/blkback.c in the Xen blkback implementation in the Linux kernel before 3.10.5 allows guest OS users to cause a denial of service (data los...
How severe is CVE-2013-2140?
CVE-2013-2140 has been rated LOW with a CVSS base score of 3.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-2140?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.