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CVE-2013-2140

13
FAUCET Score

CVE-2013-2140 describes a denial-of-service vulnerability in the Xen blkback implementation of the Linux kernel, affecting versions before 3.10.5. A authenticated guest OS user can trigger data loss by performing filesystem write operations on a read-only disk that supports discard or SCSI UNMAP features. The vulnerability has a CVSS score of 3.8, indicating a low severity with an adjacent network attack vector, medium complexity, and partial impact on integrity and availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.10.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

3.8LOW

AV:A/AC:M/Au:S/C:N/I:P/A:P

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
4.4
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.01%
Probability of exploitation in next 30 days
EPSS Percentile
59.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0101 is in the 88th percentile among its peer group of 27 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2013-2140Moderate

kernel: xen: blkback: insufficient permission checks for BLKIF_OP_DISCARD

Jun 5, 2013

References

git.kernel.org
people.canonical.com / ~ubuntu-security/cve/2013/CVE-2013-2140.html
bugzilla.redhat.com / show_bug.cgi
github.com / torvalds/linux/commit/604c499cbbcc3d5fe5fb8d53306aa0fae1990109
ExploitPatch
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.10.5
openwall.com / lists/oss-security/2013/06/05/21
ubuntu.com / usn/USN-1938-1
ubuntu.com / usn/USN-1943-1
ubuntu.com / usn/USN-1944-1
ubuntu.com / usn/USN-1945-1
ubuntu.com / usn/USN-1946-1
ubuntu.com / usn/USN-1947-1
ubuntu.com / usn/USN-2038-1
ubuntu.com / usn/USN-2039-1