Debian: kernel Multiple vulnerabilities

    Date09 Jun 2003
    Posted ByLinuxSecurity Advisories
    A number of vulnerabilities have been discovered in the Linux kernel.
    Debian Security Advisory DSA 311-1                     This email address is being protected from spambots. You need JavaScript enabled to view it.                             Matt Zimmerman
    June 8th, 2003                 
    Package        : kernel
    Vulnerability  : several
    Problem-Type   : local, remote
    Debian-specific: no
    CVE Ids        : CVE-2002-0429 CAN-2003-0001 CAN-2003-0127 CAN-2003-0244 CAN-2003-0246 CAN-2003-0247 CAN-2003-0248 CAN-2003-0364
    A number of vulnerabilities have been discovered in the Linux kernel.
    - CVE-2002-0429: The iBCS routines in arch/i386/kernel/traps.c for
      Linux kernels 2.4.18 and earlier on x86 systems allow local users to
      kill arbitrary processes via a a binary compatibility interface
    - CAN-2003-0001: 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
    - CAN-2003-0127: The kernel module loader allows local users to gain
      root privileges by using ptrace to attach to a child process that is
      spawned by the kernel
    - CAN-2003-0244: The route cache implementation in Linux 2.4, and the
      Netfilter IP conntrack module, allows remote attackers to cause a
      denial of service (CPU consumption) via packets with forged source
      addresses that cause a large number of hash table collisions related
      to the PREROUTING chain
    - CAN-2003-0246: The ioperm system call in Linux kernel 2.4.20 and
      earlier does not properly restrict privileges, which allows local
      users to gain read or write access to certain I/O ports.
    - CAN-2003-0247: vulnerability in the TTY layer of the Linux kernel
      2.4 allows attackers to cause a denial of service ("kernel oops")
    - CAN-2003-0248: The mxcsr code in Linux kernel 2.4 allows attackers
      to modify CPU state registers via a malformed address.
    - CAN-2003-0364: The TCP/IP fragment reassembly handling in the Linux
      kernel 2.4 allows remote attackers to cause a denial of service (CPU
      consumption) via certain packets that cause a large number of hash
      table collisions
    This advisory covers only the i386 (Intel IA32) architectures.  Other
    architectures will be covered by separate advisories.
    For the stable distribution (woody) on the i386 architecture, these
    problems have been fixed in kernel-source-2.4.18 version 2.4.18-9,
    kernel-image-2.4.18-1-i386 version 2.4.18-8, and
    kernel-image-2.4.18-i386bf version 2.4.18-5woody1.
    For the unstable distribution (sid) these problems are fixed in the
    2.4.20 series kernels based on Debian sources.
    We recommend that you update your kernel packages.
    If you are using the kernel installed by the installation system when
    the "bf24" option is selected (for a 2.4.x kernel), you should install
    the kernel-image-2.4.18-bf2.4 package.  If you installed a different
    kernel-image package after installation, you should install the
    corresponding 2.4.18-1 kernel.  You may use the table below as a
    | If "uname -r" shows: | Install this package:
    | 2.4.18-bf2.4         | kernel-image-2.4.18-bf2.4
    | 2.4.18-386           | kernel-image-2.4.18-1-386
    | 2.4.18-586tsc        | kernel-image-2.4.18-1-586tsc
    | 2.4.18-686           | kernel-image-2.4.18-1-686
    | 2.4.18-686-smp       | kernel-image-2.4.18-1-686-smp
    | 2.4.18-k6            | kernel-image-2.4.18-1-k6
    | 2.4.18-k7            | kernel-image-2.4.18-1-k7
    NOTE: that this kernel is not binary compatible with the previous
    version.  For this reason, the kernel has a different version number
    and will not be installed automatically as part of the normal upgrade
    process.  Any custom modules will need to be rebuilt in order to work
    with the new kernel.  New PCMCIA modules are provided for all of the
    above kernels.
    NOTE: A system reboot will be required immediately after the upgrade
    in order to replace the running kernel.  Remember to read carefully
    and follow the instructions given during the kernel upgrade process.
    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:     1322 945d8d05b054684880e3af31b28a9e49
          Size/MD5 checksum:    69411 0fa830e16d4f5e46fe1f0ebe0343d11c
      Intel IA-32 architecture:
          Size/MD5 checksum:  3397470 b79b975b73aa31da8b9938aba905a9f6
          Size/MD5 checksum:  3487116 90799a6ccc058be247b235c21ec61503
          Size/MD5 checksum:  3487614 9453587923dd16a964b028d4ba2f9a63
          Size/MD5 checksum:  3487368 5513db336e824b2d16aa503a292047f0
          Size/MD5 checksum:  3488672 afbb191c23dfabb30fe7a8aa1a99bd1f
          Size/MD5 checksum:  3487282 70ee63953c653de7dfa83531b8ce1245
          Size/MD5 checksum:  3487402 27c7b5077ed009217a01dbeafa311915
          Size/MD5 checksum:  8795814 1cc6de04aa29d9766d48c4c36ae64b3e
          Size/MD5 checksum:  8703468 43a2d50765140751ac8fd878f7b66950
          Size/MD5 checksum:  8700336 894ded8e3e34be04b741ac706d5cc288
          Size/MD5 checksum:  8959054 b59983d4ed1d9f214fe17bf624a85df7
          Size/MD5 checksum:  8659474 6d86c580433b69464c238e69eec8ad9e
          Size/MD5 checksum:  8861530 5f1935679b4628636f8da61f54a95fee
          Size/MD5 checksum:   227910 06d05b43ca1a5ec9700274f6d1035c31
          Size/MD5 checksum:   227482 c5f357cf54a363ff62f6037a41a0702a
          Size/MD5 checksum:   226924 9d8aa23b21e71aa603c66f47f35e967f
          Size/MD5 checksum:   230574 7d25c186114a62b609bedab0f5354d0b
          Size/MD5 checksum:   226564 540eabdaf90bcda800221c712c996524
          Size/MD5 checksum:   229836 d63194dd5ae452d0a7d814ee9b75a60a
      Source archives:
          Size/MD5 checksum:      653 d3a0a6b26b6282d9ba8af5c2f7008378
          Size/MD5 checksum:    25420 66fe5aac9c60c4dfa865d563dfbbaed5
      Intel IA-32 architecture:
          Size/MD5 checksum:  3409156 325717b6867a715d5a0ef8364d8cb29c
          Size/MD5 checksum:  6423164 d510d8aaedbeb91fa2e90e9cabf5b39b
      Source archives:
          Size/MD5 checksum:      796 fac77414e913e144645d22048b19bf01
          Size/MD5 checksum:    60409 443b9fee98c7d22995efbdeca3ca1afc
          Size/MD5 checksum: 29818323 24b4c45a04a23eb4ce465eb326a6ddf2
      Architecture independent components:
          Size/MD5 checksum:  1709588 9bbb7ae427dc843d0c5ebe0f4a013cb4
          Size/MD5 checksum: 23885800 e12cb29bd638ec9bdedacd07f31a6921
      Intel IA-32 architecture:
          Size/MD5 checksum:   403194 30c203861afa9678cc5fb08f90021ba6
      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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