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CVE-2011-1090

17
FAUCET Score

CVE-2011-1090 describes a denial-of-service vulnerability in the Linux kernel, specifically within the NFSv4 ACL handling function (__nfs4_proc_set_acl) in versions prior to 2.6.38. This flaw stems from improper memory deallocation after using kmalloc, allowing local users to trigger a system panic through a crafted ACL setting attempt. The vulnerability has a CVSS score of 4.9, indicating a low attack complexity and local access requirement, with the primary impact being system availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.38CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:rc8:*:*:*:*:*:*
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

4.9MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
35.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 66th percentile among its peer group of 3,050 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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 (6)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-238.9.1.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-2011-1090Moderate

kernel: nfs4: Ensure that ACL pages sent over NFS were not allocated from the slab

Mar 5, 2011

References

git.kernel.org
lists.opensuse.org / opensuse-security-announce/2015-04/msg00020.html
openwall.com / lists/oss-security/2011/03/07/12
Patch
openwall.com / lists/oss-security/2011/03/07/2
Patch
bugzilla.redhat.com / show_bug.cgi
Patch
secunia.com / advisories/46397
securitytracker.com / id
kernel.org / pub/linux/kernel/v2.6/ChangeLog-2.6.38
securityfocus.com / archive/1/520102/100/0/threaded
vmware.com / security/advisories/VMSA-2011-0012.html