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    CVE-2012-2123

    The cap_bprm_set_creds function in security/commoncap.c in the Linux kernel before 3.3.3 does not properly handle the use of file system capabilities (aka fcaps) for implementing a privileged executable file, which allows local users to bypass intended personality restrictions via a crafted application, as demonstrated by an attack that uses a parent process to disable ASLR.

    Published:Apr 17, 2012
    Last Modified:Apr 11, 2025
    EPS:May 17, 2012
    EPSS Score:0.00059
    CVSS Score:7.2

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Mrg

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445
    http://rhn.redhat.com/errata/RHSA-2012-0670.html
    http://rhn.redhat.com/errata/RHSA-2012-0743.html
    http://www.debian.org/security/2012/dsa-2469
    http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3
    http://www.openwall.com/lists/oss-security/2012/04/20/6
    http://www.securityfocus.com/bid/53166
    http://www.securitytracker.com/id?1027072
    https://bugzilla.redhat.com/show_bug.cgi?id=806722
    https://exchange.xforce.ibmcloud.com/vulnerabilities/75043
    https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d52fc5dde171f030170a6cb78034d166b13c9445
    http://rhn.redhat.com/errata/RHSA-2012-0670.html
    http://rhn.redhat.com/errata/RHSA-2012-0743.html
    http://www.debian.org/security/2012/dsa-2469
    http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.3
    http://www.openwall.com/lists/oss-security/2012/04/20/6
    http://www.securityfocus.com/bid/53166
    http://www.securitytracker.com/id?1027072
    https://bugzilla.redhat.com/show_bug.cgi?id=806722
    https://exchange.xforce.ibmcloud.com/vulnerabilities/75043
    https://github.com/torvalds/linux/commit/d52fc5dde171f030170a6cb78034d166b13c9445

    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