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    CVE-2009-1338

    The kill_something_info function in kernel/signal.c in the Linux kernel before 2.6.28 does not consider PID namespaces when processing signals directed to PID -1, which allows local users to bypass the intended namespace isolation, and send arbitrary signals to all processes in all namespaces, via a kill command.

    Published:Oct 29, 2008
    Last Modified:Apr 23, 2026
    EPS:Apr 22, 2009
    EPSS Score:0.00066
    CVSS Score:4.6

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    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=d25141a818383b3c3b09f065698c544a7a0ec6e7
    http://lkml.org/lkml/2008/7/23/148
    http://secunia.com/advisories/34981
    http://secunia.com/advisories/35120
    http://secunia.com/advisories/35121
    http://secunia.com/advisories/35343
    http://secunia.com/advisories/35656
    http://wiki.rpath.com/Advisories:rPSA-2009-0084
    http://www.debian.org/security/2009/dsa-1787
    http://www.debian.org/security/2009/dsa-1800
    http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28
    http://www.openwall.com/lists/oss-security/2009/04/16/2
    http://www.openwall.com/lists/oss-security/2009/04/17/4
    http://www.openwall.com/lists/oss-security/2009/04/21/1
    http://www.redhat.com/support/errata/RHSA-2009-1081.html
    http://www.securityfocus.com/archive/1/503610/100/0/threaded
    http://www.ubuntu.com/usn/usn-793-1
    https://bugzilla.redhat.com/show_bug.cgi?id=496031
    https://exchange.xforce.ibmcloud.com/vulnerabilities/50386
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d25141a818383b3c3b09f065698c544a7a0ec6e7
    http://lkml.org/lkml/2008/7/23/148
    http://secunia.com/advisories/34981
    http://secunia.com/advisories/35120
    http://secunia.com/advisories/35121
    http://secunia.com/advisories/35343
    http://secunia.com/advisories/35656
    http://wiki.rpath.com/Advisories:rPSA-2009-0084
    http://www.debian.org/security/2009/dsa-1787
    http://www.debian.org/security/2009/dsa-1800
    http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28
    http://www.openwall.com/lists/oss-security/2009/04/16/2
    http://www.openwall.com/lists/oss-security/2009/04/17/4
    http://www.openwall.com/lists/oss-security/2009/04/21/1
    http://www.redhat.com/support/errata/RHSA-2009-1081.html
    http://www.securityfocus.com/archive/1/503610/100/0/threaded
    http://www.ubuntu.com/usn/usn-793-1
    https://bugzilla.redhat.com/show_bug.cgi?id=496031
    https://exchange.xforce.ibmcloud.com/vulnerabilities/50386

    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