CVE-2009-0887
First published: Thu Mar 12 2009(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux-PAM | =0.99.1.0 | |
| Linux-PAM | =0.99.2.0 | |
| Linux-PAM | =0.99.2.1 | |
| Linux-PAM | =0.99.3.0 | |
| Linux-PAM | =0.99.4.0 | |
| Linux-PAM | =0.99.5.0 | |
| Linux-PAM | =0.99.6.0 | |
| Linux-PAM | =0.99.6.1 | |
| Linux-PAM | =0.99.6.2 | |
| Linux-PAM | =0.99.6.3 | |
| Linux-PAM | =0.99.7.0 | |
| Linux-PAM | =0.99.7.1 | |
| Linux-PAM | =0.99.8.0 | |
| Linux-PAM | =0.99.8.1 | |
| Linux-PAM | =0.99.9.0 | |
| Linux-PAM | =0.99.10.0 | |
| Linux-PAM | =1.0.0 | |
| Linux-PAM | =1.0.1 | |
| Linux-PAM | =1.0.2 | |
| Linux-PAM | <=1.0.3 |
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Reference Links
- http://openwall.com/lists/oss-security/2009/03/05/1
- http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?view=log
- http://www.securityfocus.com/bid/34010
- http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?r1=1.9&r2=1.10&view=patch
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:077
- http://secunia.com/advisories/34733
- https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00398.html
- https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00420.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49110
- http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?r1=1.9&%3Br2=1.10&%3Bview=patch
Frequently Asked Questions
What is the severity of CVE-2009-0887?
CVE-2009-0887 is considered a high severity vulnerability due to its potential for denial of service and unauthorized access.
How do I fix CVE-2009-0887?
To fix CVE-2009-0887, upgrade your Linux-PAM to version 1.0.4 or later, which addresses this vulnerability.
What systems are affected by CVE-2009-0887?
CVE-2009-0887 affects multiple versions of Linux-PAM including versions up to and including 1.0.3.
Can CVE-2009-0887 be exploited remotely?
Yes, CVE-2009-0887 can be exploited by remote attackers to cause a denial of service.
What types of attacks are possible with CVE-2009-0887?
CVE-2009-0887 may allow remote authenticated users to gain unauthorized login access or cause a denial of service.
- agent/severity
- agent/weakness
- agent/references
- agent/author
- agent/type
- agent/description
- agent/event
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/remedy
- agent/tags
- collector/nvd-historical
- agent/software-canonical-lookup-request
- collector/nvd-index
- collector/nvd-api
- vendor/linux-pam
- canonical/linux-pam
- version/linux-pam/0.99.1.0
- version/linux-pam/0.99.2.0
- version/linux-pam/0.99.2.1
- version/linux-pam/0.99.3.0
- version/linux-pam/0.99.4.0
- version/linux-pam/0.99.5.0
- version/linux-pam/0.99.6.0
- version/linux-pam/0.99.6.1
- version/linux-pam/0.99.6.2
- version/linux-pam/0.99.6.3
- version/linux-pam/0.99.7.0
- version/linux-pam/0.99.7.1
- version/linux-pam/0.99.8.0
- version/linux-pam/0.99.8.1
- version/linux-pam/0.99.9.0
- version/linux-pam/0.99.10.0
- version/linux-pam/1.0.0
- version/linux-pam/1.0.1
- version/linux-pam/1.0.2
- version/linux-pam/1.0.3