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CVE-2011-1495

23
FAUCET Score

CVE-2011-1495 describes a critical vulnerability in the Linux kernel's mpt2sas driver (versions 2.6.38 and earlier). This flaw stems from insufficient validation of length and offset values during memory copy operations within the _ctl_do_mpt_command and _ctl_diag_read_buffer functions. A local attacker could exploit this via a crafted ioctl call to achieve privilege escalation, cause a denial of service through memory corruption, or extract sensitive kernel memory information. With a CVSS score of 7.2 (High), this vulnerability presents a significant risk due to its local attack vector and low attack complexity, allowing for complete confidentiality, integrity, and availability impacts. Despite its severity, there is no evidence of active exploitation in the wild, and no public exploit code is available on platforms like Metasploit or ExploitDB. Community discussion is minimal, with only one mention indicating limited public attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.38CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
2.6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.1:rc1:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.1:rc2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

AV:L/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 33rd percentile among its peer group of 3,241 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 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 (6)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-238.12.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-131.0.15.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.0 EUS - Server OnlyFixed in: kernel-0:2.6.32-71.31.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:2.6.33.9-rt31.75.el6rt
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 1Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2011-1495Important

kernel: drivers/scsi/mpt2sas: prevent heap overflows

Apr 5, 2011

References

downloads.avaya.com / css/P8/documents/100145416
lists.opensuse.org / opensuse-security-announce/2015-04/msg00020.html
lkml.org / lkml/2011/4/5/327
Patch
openwall.com / lists/oss-security/2011/04/05/32
Patch
openwall.com / lists/oss-security/2011/04/06/2
Patch
rhn.redhat.com / errata/RHSA-2011-0833.html
bugzilla.redhat.com / show_bug.cgi
Patch
secunia.com / advisories/46397
patchwork.kernel.org / patch/688021
Patch
securityfocus.com / archive/1/520102/100/0/threaded
securityfocus.com / bid/47185
vmware.com / security/advisories/VMSA-2011-0012.html