CVE-2008-5394

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    CVE-2008-5394

    Published: 9 Dec 2008Last Modified: 10 Apr 2026

    Summary:

    Details: /bin/login in shadow 4.0.18.1 in Debian GNU/Linux, and probably other Linux distributions, allows local users in the utmp group to overwrite arbitrary files via a symlink attack on a temporary file referenced in a line (aka ut_line) field in a utmp entry.

    References: http://security.gentoo.org/glsa/glsa-200903-24.xml, http://www.mandriva.com/security/advisories?name=MDVSA-2009:062, http://www.ubuntu.com/usn/usn-695-1, http://bugs.debian.org/332198, http://bugs.debian.org/505071, http://bugs.debian.org/505271, http://osvdb.org/52200, http://securityreason.com/securityalert/4695, http://www.securityfocus.com/archive/1/498769/100/0/threaded, http://www.securityfocus.com/bid/32552, https://exchange.xforce.ibmcloud.com/vulnerabilities/47037, https://www.exploit-db.com/exploits/7313

    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