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Home - Vulnerability NotesPrint
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CERT-In Vulnerability Note CIVN-2007-0144
Linux Kernel CIFS VFS Buffer Overflow Vulnerability

Original Issue Date:November 16, 2007

Severity Rating: HIGH

Systems Affected

  • Linux Kernel 2.6.X

    • Overview

    A vulnerability has been reported in Linux Kernel which could be exploited by remote attacker to cause a denial of service or execution of arbitrary code on the affected system.

    Description

    The CIFS VFS is a virtual file system for Linux to allow access to servers and storage appliances.

    A buffer overflow vulnerability has been reported in the send/receive function in fs/cifs/transport.c while processing overly long SMB responses. This vulnerability could be exploited by remote attackers to cause a buffer overflow by sending specially crafted responses to a vulnerable system.

    Successful exploitation may require that a malicious server is used to mount a CIFS share.



    Solution

    A fix is available via GIT :
    http://git.kernel.org/?p=linux/kernel/git/sfrench/cifs-2.6.git;a=commit;h=133672efbc1085f9af990bdc145e1822ea93bcf3

    Vendor Information

    Kernel
    http://kernel.org/

    References

    Secunia
    http://secunia.com/advisories/27666/

    FrSIRT
    http://www.frsirt.com/english/advisories/2007/3860

    CVE Name
    CVE-2007-5904

    Disclaimer

    The information provided herein is on "as is" basis, without warranty of any kind.

    Contact Information

    Email: info@cert-in.org.in
    Phone: +91-11-2436857

    Postal address

    Indian Computer Emergency Response Team (CERT-In)
    Ministry of Electronics and Information Technology
    Government of India
    Electronics Niketan
    6, CGO Complex, Lodhi Road,
    New Delhi - 110 003
    India

     
    Indian Computer Emergency Response Team - CERT-In, Ministry of Electronics and Information Technology, Government of India.
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