CVE-2013-2140
The dispatch_discard_io function in drivers/block/xen-blkback/blkback.c in the Xen blkback implementation in the Linux kernel before…
- 3.8LowCVSS base score
- 1.0%Exploitation in 30 daysEPSS · top 37% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By redhat
- 7 months later
· 7 months later
Published
- 11 years later
· 11 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Low3.8 | AV:A/AC:M/Au:S/C:N/I:P/A:P |
- EPSS (exploitation in 30 days)
- 1.0% · top 37% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.8.
Affected products
n/a
- affected n/a
References
14
- USN-1943-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2039-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-1938-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-1944-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-1945-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2038-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://people.canonical.com/~ubuntu-security/cve/2013/CVE-2013-2140.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20130605 Re: xen/blkback: Check device permissions before allowing OP_DISCARD (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=604c499cbbcc3d5fe5fb8d53306aa0fae1990109 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/torvalds/linux/commit/604c499cbbcc3d5fe5fb8d53306aa0fae1990109 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-1947-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=971146 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.10.5 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-1946-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2013-2105 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2013-2140)Record last updated .