CVE-2012-6656

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    CVE-2012-6656

    Published: 5 Dec 2014Last Modified: 10 Apr 2026

    Summary:

    Details: iconvdata/ibm930.c in GNU C Library (aka glibc) before 2.16 allows context-dependent attackers to cause a denial of service (out-of-bounds read) via a multibyte character value of "0xffff" to the iconv function when converting IBM930 encoded data to UTF-8.

    References: http://www.debian.org/security/2015/dsa-3142, http://www.mandriva.com/security/advisories?name=MDVSA-2014:175, http://www.openwall.com/lists/oss-security/2014/08/29/3, http://www.openwall.com/lists/oss-security/2014/09/02/1, http://www.securityfocus.com/bid/69472, http://www.ubuntu.com/usn/USN-2432-1, https://security.gentoo.org/glsa/201503-04, http://www.openwall.com/lists/oss-security/2014/08/29/3, http://www.openwall.com/lists/oss-security/2014/09/02/1, https://sourceware.org/bugzilla/show_bug.cgi?id=14134, https://sourceware.org/bugzilla/show_bug.cgi?id=14134, https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=6e230d11837f3ae7b375ea69d7905f0d18eb79e5

    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-2012-6656 | CVE-DB