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CVE-2009-0887

UnknownEPSS 1.93%

Last modified

CVE-2009-0887 is a vulnerability of currently unknown severity. Integer signedness error in the _pam_StrTok function in libpam/pam_misc.c in Linux-PAM (aka pam) 1.0.3 and earlier, when a configuration file contains non-ASCII usernames, might allow remote attackers to cause a denial of service, and might allow remote authenticated users to obtain login access with a different user's non-ASCII username, via a login attempt.. EPSS estimates a 1.93% chance of exploitation in the next 30 days.

Description

Integer signedness error in the _pam_StrTok function in libpam/pam_misc.c in Linux-PAM (aka pam) 1.0.3 and earlier, when a configuration file contains non-ASCII usernames, might allow remote attackers to cause a denial of service, and might allow remote authenticated users to obtain login access with a different user's non-ASCII username, via a login attempt.

Metrics

EPSS Probability
1.93%

77.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Linux-PamLinux-Pam<= 1.0.3
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

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2009-0887?
Integer signedness error in the _pam_StrTok function in libpam/pam_misc.c in Linux-PAM (aka pam) 1.0.3 and earlier, when a configuration file contains non-ASCII usernames, might allow remote attackers to cause a denial of service, and might allow remote authenticated users to obtain login access with a different user's non-ASCII username, via a login attempt.
How severe is CVE-2009-0887?
Severity scoring for CVE-2009-0887 is pending analysis. The EPSS model estimates a 1.93% probability of exploitation in the next 30 days.
How do I fix CVE-2009-0887?
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-2009-0887?

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

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Source: NVD / NIST