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CVE-2011-2484

19
FAUCET Score

CVE-2011-2484 describes a denial-of-service vulnerability in the Linux kernel, specifically affecting versions 2.6.39.1 and earlier. The flaw in the add_del_listener function allows local users to repeatedly register exit handlers, leading to excessive memory and CPU consumption, effectively bypassing the OOM Killer. With a CVSS score of 4.9, this vulnerability is considered medium severity, requiring local access with low attack complexity to achieve a complete denial of service. 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
<= 2.6.39.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 56th percentile among its peer group of 3,049 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 (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-274.7.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-131.17.1.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

Vendor Advisories (1)

redhatCVE-2011-2484Moderate

kernel: taskstats: duplicate entries in listener mode can lead to DoS

Jun 16, 2011

References

lists.openwall.net / linux-kernel/2011/06/16/605
Patch
openwall.com / lists/oss-security/2011/06/22/1
Mailing ListPatch
openwall.com / lists/oss-security/2011/06/22/2
Mailing ListPatch
bugzilla.redhat.com / show_bug.cgi
Issue Tracking
exchange.xforce.ibmcloud.com / vulnerabilities/68150
VDB Entry
securityfocus.com / bid/48383
Third Party AdvisoryVDB Entry