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    CVE-2012-0876

    The XML parser (xmlparse.c) in expat before 2.1.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via an XML file with many identifiers with the same value.

    Published:Mar 3, 2012
    Last Modified:Apr 11, 2025
    EPS:Jul 3, 2012
    EPSS Score:0.00414
    CVSS Score:4.3

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Libexpat Project
    Product
    Libexpat
    Vendor
    Oracle
    Product
    Solaris
    Vendor
    Python
    Product
    Python
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Redhat
    Product
    Jboss Core Services
    Vendor
    Redhat
    Product
    Jboss Enterprise Application Platform
    Vendor
    Redhat
    Product
    Jboss Enterprise Web Server
    Vendor
    Redhat
    Product
    Storage

    Exploits

    No exploit reference

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    References

    http://bugs.python.org/issue13703#msg151870
    http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
    http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html
    http://mail.libexpat.org/pipermail/expat-discuss/2012-March/002768.html
    http://rhn.redhat.com/errata/RHSA-2012-0731.html
    http://rhn.redhat.com/errata/RHSA-2016-0062.html
    http://rhn.redhat.com/errata/RHSA-2016-2957.html
    http://secunia.com/advisories/49504
    http://secunia.com/advisories/51024
    http://secunia.com/advisories/51040
    http://sourceforge.net/projects/expat/files/expat/2.1.0/
    http://sourceforge.net/tracker/?func=detail&atid=110127&aid=3496608&group_id=10127
    http://www.debian.org/security/2012/dsa-2525
    http://www.mandriva.com/security/advisories?name=MDVSA-2012:041
    http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
    http://www.securityfocus.com/bid/52379
    http://www.ubuntu.com/usn/USN-1527-1
    http://www.ubuntu.com/usn/USN-1613-1
    http://www.ubuntu.com/usn/USN-1613-2
    https://kc.mcafee.com/corporate/index?page=content&id=SB10365
    https://support.apple.com/HT205637
    https://www.tenable.com/security/tns-2016-20
    http://bugs.python.org/issue13703#msg151870
    http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
    http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html
    http://mail.libexpat.org/pipermail/expat-discuss/2012-March/002768.html
    http://rhn.redhat.com/errata/RHSA-2012-0731.html
    http://rhn.redhat.com/errata/RHSA-2016-0062.html
    http://rhn.redhat.com/errata/RHSA-2016-2957.html
    http://secunia.com/advisories/49504
    http://secunia.com/advisories/51024
    http://secunia.com/advisories/51040
    http://sourceforge.net/projects/expat/files/expat/2.1.0/
    http://sourceforge.net/tracker/?func=detail&atid=110127&aid=3496608&group_id=10127
    http://www.debian.org/security/2012/dsa-2525
    http://www.mandriva.com/security/advisories?name=MDVSA-2012:041
    http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
    http://www.securityfocus.com/bid/52379
    http://www.ubuntu.com/usn/USN-1527-1
    http://www.ubuntu.com/usn/USN-1613-1
    http://www.ubuntu.com/usn/USN-1613-2
    https://kc.mcafee.com/corporate/index?page=content&id=SB10365
    https://support.apple.com/HT205637
    https://www.tenable.com/security/tns-2016-20

    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