CVE-2012-6542

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    CVE-2012-6542

    Published: 15 Mar 2013Last Modified: 10 Apr 2026

    Summary:

    Details: The llc_ui_getname function in net/llc/af_llc.c in the Linux kernel before 3.6 has an incorrect return value in certain circumstances, which allows local users to obtain sensitive information from kernel stack memory via a crafted application that leverages an uninitialized pointer argument.

    References: http://rhn.redhat.com/errata/RHSA-2013-1645.html, http://www.ubuntu.com/usn/USN-1805-1, http://www.ubuntu.com/usn/USN-1808-1, https://github.com/torvalds/linux/commit/3592aaeb80290bda0f2cf0b5456c97bfc638b192, https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3592aaeb80290bda0f2cf0b5456c97bfc638b192, http://www.openwall.com/lists/oss-security/2013/03/05/13

    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-2012-6542 | CVE-DB