CVE-2009-0887

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    CVE-2009-0887

    Published: 12 Mar 2009Last Modified: 10 Apr 2026

    Summary:

    Details: 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.

    References: http://secunia.com/advisories/34733, http://www.mandriva.com/security/advisories?name=MDVSA-2009:077, http://openwall.com/lists/oss-security/2009/03/05/1, http://www.securityfocus.com/bid/34010, http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?r1=1.9&amp%3Br2=1.10&amp%3Bview=patch, http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?view=log, 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

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2009-0887 | CVE-DB