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CVE-2010-2538

19
FAUCET Score

CVE-2010-2538 describes an integer overflow vulnerability in the btrfs_ioctl_clone function within the Linux kernel, specifically affecting versions prior to 2.6.35. This flaw could allow local users to gain unauthorized access to sensitive information through a specially crafted BTRFS_IOC_CLONE_RANGE ioctl call. Rated with a CVSS score of 5.5 (Medium), this vulnerability has a low attack complexity and requires local user privileges (AV:L/AC:L/PR:L). The primary impact is a high confidentiality compromise (C:H), with no integrity or availability impact. There is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, indicating a low level of public attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.6.35CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
9.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:*
10.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*
10.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*
11CPE matchmatch criteria
cpe:2.3:o:suse:linux_enterprise_desktop:11:sp1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 86th percentile among its peer group of 15,940 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2010-2538

kernel: btrfs: fix checks in BTRFS_IOC_CLONE_RANGE

References

git.kernel.org
lists.opensuse.org / opensuse-security-announce/2010-09/msg00004.html
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
secunia.com / advisories/42758
Broken Link
kernel.org / pub/linux/kernel/v2.6/ChangeLog-2.6.35
Broken Link
openwall.com / lists/oss-security/2010/07/21/10
Mailing ListPatchThird Party Advisory
openwall.com / lists/oss-security/2010/07/21/4
Mailing ListPatchThird Party Advisory
securityfocus.com / bid/41854
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-1041-1
Third Party Advisory
vupen.com / english/advisories/2011/0070
Broken Link