CVE-2014-8121

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    CVE-2014-8121

    Published: 27 Mar 2015Last Modified: 16 Apr 2026

    Summary:

    Details: DB_LOOKUP in nss_files/files-XXX.c in the Name Service Switch (NSS) in GNU C Library (aka glibc or libc6) 2.21 and earlier does not properly check if a file is open, which allows remote attackers to cause a denial of service (infinite loop) by performing a look-up on a database while iterating over it, which triggers the file pointer to be reset.

    References: http://rhn.redhat.com/errata/RHSA-2015-0327.html, http://www.debian.org/security/2016/dsa-3480, http://www.securityfocus.com/bid/73038, http://www.ubuntu.com/usn/USN-2985-1, http://www.ubuntu.com/usn/USN-2985-2, https://security.gentoo.org/glsa/201602-02, http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00019.html, http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html, https://bugzilla.redhat.com/show_bug.cgi?id=1165192, https://sourceware.org/ml/libc-alpha/2015-02/msg00617.html, https://bugzilla.redhat.com/show_bug.cgi?id=1165192

    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