Linux Security
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    Linux Security

    Debian: kernel-image-2.4.17-ia64 Many backported vuln fixes

    Date 15 Jan 2004
    Posted By LinuxSecurity Advisories
    The IA-64 maintainers fixed several security related bugs in the Linux kernel 2.4.17 used for the IA-64 architecture, mostly by backporting fixes from 2.4.18.
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    Debian Security Advisory DSA 423-1                     This email address is being protected from spambots. You need JavaScript enabled to view it.                             Martin Schulze
    January 15th, 2004             
    - --------------------------------------------------------------------------
    Package        : kernel-image-2.4.17-ia64
    Vulnerability  : several
    Problem-Type   : local, remote
    Debian-specific: no
    CVE IDs        : CAN-2003-0001 CAN-2003-0018 CAN-2003-0127 CAN-2003-0461 CAN-2003-0462 CAN-2003-0476 CAN-2003-0501 CAN-2003-0550 CAN-2003-0551 CAN-2003-0552 CAN-2003-0961 CAN-2003-0985
    The IA-64 maintainers fixed several security related bugs in the Linux
    kernel 2.4.17 used for the IA-64 architecture, mostly by backporting
    fixes from 2.4.18.  The corrections are listed below with the
    identification from the Common Vulnerabilities and Exposures (CVE)
        Multiple ethernet network interface card (NIC) device drivers do
        not pad frames with null bytes, which allows remote attackers to
        obtain information from previous packets or kernel memory by using
        malformed packets, as demonstrated by Etherleak.
        Linux kernel 2.4.10 through 2.4.21-pre4 does not properly handle
        the O_DIRECT feature, which allows local attackers with write
        privileges to read portions of previously deleted files, or cause
        file system corruption.
        The kernel module loader in Linux kernel 2.2.x before 2.2.25, and
        2.4.x before 2.4.21, allows local users to gain root privileges
        by using ptrace to attach to a child process which is spawned by
        the kernel.
        The virtual file /proc/tty/driver/serial in Linux 2.4.x reveals
        the exact number of characters used in serial links, which could
        allow local users to obtain potentially sensitive information such
        as the length of passwords.
        A race condition in the way env_start and env_end pointers are
        initialized in the execve system call and used in fs/proc/base.c
        on Linux 2.4 allows local users to cause a denial of service
        The execve system call in Linux 2.4.x records the file descriptor
        of the executable process in the file table of the calling
        process, which allows local users to gain read access to
        restricted file descriptors.
        The /proc filesystem in Linux allows local users to obtain
        sensitive information by opening various entries in /proc/self
        before executing a setuid program, which causes the program to
        fail to change the ownership and permissions of those entries.
        The STP protocol, as enabled in Linux 2.4.x, does not provide
        sufficient security by design, which allows attackers to modify
        the bridge topology.
        The STP protocol implementation in Linux 2.4.x does not properly
        verify certain lengths, which could allow attackers to cause a
        denial of service.
        Linux 2.4.x allows remote attackers to spoof the bridge Forwarding
        table via forged packets whose source addresses are the same as
        the target.
        An integer overflow in brk system call (do_brk function) for Linux
        kernel 2.4.22 and earlier allows local users to gain root
        The mremap system call (do_mremap) in Linux kernel 2.4 and 2.6
        does not properly perform boundary checks, which allows local
        users to cause a denial of service and possibly gain privileges by
        causing a remapping of a virtual memory area (VMA) to create a
        zero length VMA.
    For the stable distribution (woody) this problem has been fixed in
    version kernel-image-2.4.17-ia64 for the ia64 architecture.  Other
    architectures are already or will be fixed separately.
    For the unstable distribution (sid) this problem will be fixed soon
    with newly uploaded packages.
    Upgrade Instructions
    - --------------------
    wget url
            will fetch the file for you
    dpkg -i file.deb
            will install the referenced file.
    If you are using the apt-get package manager, use the line for
    sources.list as given below:
    apt-get update
            will update the internal database
    apt-get upgrade
            will install corrected packages
    You may use an automated update by adding the resources from the
    footer to the proper configuration.
    Debian GNU/Linux 3.0 alias woody
    - --------------------------------
      Source archives:
          Size/MD5 checksum:      736 cfd30b9d49a8e701ce13760cf619c3e8
          Size/MD5 checksum: 25403798 8c2cfd213fd07b06cc11e69201d15679
      Architecture independent components:
          Size/MD5 checksum: 24731332 d2a7dea12be6f7ca4a1a71a4ca7630f5
      Intel IA-64 architecture:
          Size/MD5 checksum:  3636070 eab1dfc65ae7fc48566921d5bffdb78e
          Size/MD5 checksum:  7022040 67192d2704da8a0b76598c7cfcff34d1
          Size/MD5 checksum:  7169484 d586b39c26904208de614ca51714b4c9
          Size/MD5 checksum:  7012458 11849128d636125bdf83fd3959c6a6cf
          Size/MD5 checksum:  7163498 87b87cfbaccbe8e95c8df4e3fe00acee
      These files will probably be moved into the stable distribution on
      its next revision.
    - ---------------------------------------------------------------------------------
    For apt-get: deb stable/updates main
    For dpkg-ftp: dists/stable/updates/main
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    Package info: `apt-cache show ' and


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