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…
Does this matter?
Lower severity and a low EPSS score (1.93%). Track it; it rarely justifies an emergency change on its own.
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 2.0
- 6.6 MEDIUMAV:L/AC:M/Au:S/C:C/I:C/A:C
- EPSS
- 1.93% probability · 79th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-189
- Affected
- linux-pam/linux-pam
- Source
- cve@mitre.org
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&%3Br2=1.10&%3Bview=patch
- 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&%3Br2=1.10&%3Bview=patch
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.