CVE-2011-0064

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    CVE-2011-0064

    Published: 7 Mar 2011Last Modified: 10 Apr 2026

    Summary:

    Details: The hb_buffer_ensure function in hb-buffer.c in HarfBuzz, as used in Pango 1.28.3, Firefox, and other products, does not verify that memory reallocations succeed, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) or possibly execute arbitrary code via crafted OpenType font data that triggers use of an incorrect index.

    References: http://secunia.com/advisories/43559, http://secunia.com/advisories/43572, http://secunia.com/advisories/43578, http://secunia.com/advisories/43800, http://www.debian.org/security/2011/dsa-2178, http://www.mandriva.com/security/advisories?name=MDVSA-2011:040, http://www.ubuntu.com/usn/USN-1082-1, http://www.vupen.com/english/advisories/2011/0543, http://www.vupen.com/english/advisories/2011/0555, http://www.vupen.com/english/advisories/2011/0558, http://www.vupen.com/english/advisories/2011/0584, http://www.vupen.com/english/advisories/2011/0683, http://cgit.freedesktop.org/harfbuzz/commit/?id=a6a79df5fe2ed2cd307e7a991346faee164e70d9, https://bugzilla.redhat.com/show_bug.cgi?id=678563, https://build.opensuse.org/request/show/63070, https://bugzilla.mozilla.org/show_bug.cgi?id=606997, https://bugzilla.novell.com/show_bug.cgi?id=672502, http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056065.html, http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html, http://securitytracker.com/id?1025145, http://www.redhat.com/support/errata/RHSA-2011-0309.html, http://www.securityfocus.com/bid/46632, https://exchange.xforce.ibmcloud.com/vulnerabilities/65770

    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