Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux-Pam | Linux-Pam | <= 1.0.3 |
Related Weaknesses (CWE)
References
- http://openwall.com/lists/oss-security/2009/03/05/1Exploit
- http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?r1=1.9&
- http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?view=log
- http://secunia.com/advisories/34733
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:077
- http://www.securityfocus.com/bid/34010Patch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49110
- https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00398.html
- https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00420.html
- http://openwall.com/lists/oss-security/2009/03/05/1Exploit
- http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?r1=1.9&
- http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?view=log
- http://secunia.com/advisories/34733
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:077
- http://www.securityfocus.com/bid/34010Patch
FAQ
What is CVE-2009-0887?
CVE-2009-0887 is a vulnerability with a CVSS score of 6.6 (MEDIUM). 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...
How severe is CVE-2009-0887?
CVE-2009-0887 has been rated MEDIUM with a CVSS base score of 6.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-0887?
Check the references section above for vendor advisories and patch information. Affected products include: Linux-Pam Linux-Pam.