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    CVE-2006-5174

    The copy_from_user function in the uaccess code in Linux kernel 2.6 before 2.6.19-rc1, when running on s390, does not properly clear a kernel buffer, which allows local user space programs to read portions of kernel memory by "appending to a file from a bad address," which triggers a fault that prevents the unused memory from being cleared in the kernel buffer.

    Published:Sep 28, 2006
    Last Modified:Apr 23, 2026
    EPS:Oct 5, 2006
    EPSS Score:0.00064
    CVSS Score:2.1

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux

    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://lkml.org/lkml/2006/11/5/46
    http://rhn.redhat.com/errata/RHSA-2007-0014.html
    http://secunia.com/advisories/22289
    http://secunia.com/advisories/22497
    http://secunia.com/advisories/23064
    http://secunia.com/advisories/23370
    http://secunia.com/advisories/23395
    http://secunia.com/advisories/23474
    http://secunia.com/advisories/23997
    http://secunia.com/advisories/24206
    http://securitytracker.com/id?1017090
    http://support.avaya.com/elmodocs2/security/ASA-2006-254.htm
    http://support.avaya.com/elmodocs2/security/ASA-2007-063.htm
    http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=52149ba6b0ddf3e9d965257cc0513193650b3ea8
    http://www.novell.com/linux/security/advisories/2006_79_kernel.html
    http://www.redhat.com/support/errata/RHSA-2006-0710.html
    http://www.securityfocus.com/bid/20379
    http://www.us.debian.org/security/2006/dsa-1233
    http://www.us.debian.org/security/2006/dsa-1237
    http://www.vupen.com/english/advisories/2006/3938
    https://exchange.xforce.ibmcloud.com/vulnerabilities/29378
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9885
    http://lkml.org/lkml/2006/11/5/46
    http://rhn.redhat.com/errata/RHSA-2007-0014.html
    http://secunia.com/advisories/22289
    http://secunia.com/advisories/22497
    http://secunia.com/advisories/23064
    http://secunia.com/advisories/23370
    http://secunia.com/advisories/23395
    http://secunia.com/advisories/23474
    http://secunia.com/advisories/23997
    http://secunia.com/advisories/24206
    http://securitytracker.com/id?1017090
    http://support.avaya.com/elmodocs2/security/ASA-2006-254.htm
    http://support.avaya.com/elmodocs2/security/ASA-2007-063.htm
    http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=52149ba6b0ddf3e9d965257cc0513193650b3ea8
    http://www.novell.com/linux/security/advisories/2006_79_kernel.html
    http://www.redhat.com/support/errata/RHSA-2006-0710.html
    http://www.securityfocus.com/bid/20379
    http://www.us.debian.org/security/2006/dsa-1233
    http://www.us.debian.org/security/2006/dsa-1237
    http://www.vupen.com/english/advisories/2006/3938
    https://exchange.xforce.ibmcloud.com/vulnerabilities/29378
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9885

    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