CVE-2009-0887
mediumpriority · track · 27EPSS 0.019 · 80 %ileEUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (21)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (18)
External citations — patches, advisories, analysis.
- http://openwall.com/lists/oss-security/2009/03/05/1enisa_euvd
- http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?r1=1.9&%3Br2=1.10&%3Bview=patchenisa_euvd
- http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?view=logenisa_euvd
- http://secunia.com/advisories/34733enisa_euvd
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:077enisa_euvd
- http://www.securityfocus.com/bid/34010enisa_euvd
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49110enisa_euvd
- https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00398.htmlenisa_euvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan