CVE-2011-4621

low-risk
Published 2012-05-17

The Linux kernel before 2.6.37 does not properly implement a certain clock-update optimization, which allows local users to cause a denial of service (system hang) via an application that executes code in a loop.

Do I need to act?

-
0.06% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (10)

Broken Link http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=...
Exploit http://www.openwall.com/lists/oss-security/2011/12/21/6
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=769711
Patch https://github.com/torvalds/linux/commit/f26f9aff6aaf67e9a430d16c266f91b13a5bff6...
Broken Link http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=...
Exploit http://www.openwall.com/lists/oss-security/2011/12/21/6
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=769711
Patch https://github.com/torvalds/linux/commit/f26f9aff6aaf67e9a430d16c266f91b13a5bff6...
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal