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CVE-2011-3149

UnknownEPSS 0.53%

Last modified

CVE-2011-3149 is a vulnerability of currently unknown severity. 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).. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

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).

Metrics

EPSS Probability
0.53%

40.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Linux-PamLinux-Pam<= 1.1.4
Linux-PamLinux-Pam0.99.1.0
Linux-PamLinux-Pam0.99.2.0
Linux-PamLinux-Pam0.99.2.1
Linux-PamLinux-Pam0.99.3.0
Linux-PamLinux-Pam0.99.4.0
Linux-PamLinux-Pam0.99.5.0
Linux-PamLinux-Pam0.99.6.0
Linux-PamLinux-Pam0.99.6.1
Linux-PamLinux-Pam0.99.6.2
Linux-PamLinux-Pam0.99.6.3
Linux-PamLinux-Pam0.99.7.0
Linux-PamLinux-Pam0.99.7.1
Linux-PamLinux-Pam0.99.8.0
Linux-PamLinux-Pam0.99.8.1
Linux-PamLinux-Pam0.99.9.0
Linux-PamLinux-Pam0.99.10.0
Linux-PamLinux-Pam1.0.0
Linux-PamLinux-Pam1.0.1
Linux-PamLinux-Pam1.0.2
Linux-PamLinux-Pam1.0.3
Linux-PamLinux-Pam1.0.4
Linux-PamLinux-Pam1.1.0
Linux-PamLinux-Pam1.1.1
Linux-PamLinux-Pam1.1.2
Linux-PamLinux-Pam1.1.3

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2011-3149?
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).
How severe is CVE-2011-3149?
Severity scoring for CVE-2011-3149 is pending analysis. The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.
How do I fix CVE-2011-3149?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-3149?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST