CVE-2011-3149

Description

The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).

Category

2.1
CVSS
Severity: Low
CVSS 2.0 •
EPSS 0.06%
Vendor Advisory gentoo.org Vendor Advisory ubuntu.com Vendor Advisory secunia.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://security.gentoo.org/glsa/glsa-201206-31.xml vendor advisory
http://www.ubuntu.com/usn/USN-1237-1 vendor advisory
http://secunia.com/advisories/46583 third party advisory vendor advisory
http://secunia.com/advisories/49711 third party advisory vendor advisory
https://bugs.launchpad.net/ubuntu/+source/pam/+bug/874565
http://git.fedorahosted.org/git/?p=linux-pam.git%3Ba=commitdiff%3Bh=109823cb621c900c07c4b6cdc99070d354d19444

Frequently Asked Questions

What is the severity of CVE-2011-3149?
CVE-2011-3149 has been scored as a low severity vulnerability.
How to fix CVE-2011-3149?
To fix CVE-2011-3149, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-3149 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-3149 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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