Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2011-4621 |
CWE-ID | CWE-835 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
Linux kernel Operating systems & Components / Operating system |
Vendor | Linux Foundation |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU44076
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2011-4621
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
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.
MitigationInstall update from vendor's website.
Vulnerable software versionsLinux kernel: 2.6.0 - 2.6.36.4
External linkshttp://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;a=commit;h=f26f9aff6aaf67e9a430d16c266f91b13a5bff64
http://www.openwall.com/lists/oss-security/2011/12/21/6
http://bugzilla.redhat.com/show_bug.cgi?id=769711
http://github.com/torvalds/linux/commit/f26f9aff6aaf67e9a430d16c266f91b13a5bff64
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.