[Full-Disclosure] [SECURITY] [DSA 470-1] New Linux 2.4.17 packages fix several local root exploits (hppa)

Date: 04/01/04

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    To: full-disclosure@lists.netsys.com
    Date: Thu, 1 Apr 2004 18:01:53 +0200 (CEST)

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    - --------------------------------------------------------------------------
    Debian Security Advisory DSA 470-1 security@debian.org
    http://www.debian.org/security/ Martin Schulze
    April 1st, 2004 http://www.debian.org/security/faq
    - --------------------------------------------------------------------------

    Package : kernel-image-2.4.17-hppa
    Vulnerability : several vulnerabilities
    Problem-Type : local
    Debian-specific: no
    CVE ID : CAN-2003-0961 CAN-2003-0985 CAN-2004-0077

    Several local root exploits have been discovered recently in the Linux
    kernel. This security advisory updates the mips kernel 2.4.19 for
    Debian GNU/Linux. The Common Vulnerabilities and Exposures project
    identifies the following problems that are fixed with this update:


       An integer overflow in brk() system call (do_brk() function) for
       Linux allows a local attacker to gain root privileges. Fixed
       upstream in Linux 2.4.23.


       Paul Starzetz discovered a flaw in bounds checking in mremap() in
       the Linux kernel (present in version 2.4.x and 2.6.x) which may
       allow a local attacker to gain root privileges. Version 2.2 is not
       affected by this bug. Fixed upstream in Linux 2.4.24.


       Paul Starzetz and Wojciech Purczynski of isec.pl discovered a
       critical security vulnerability in the memory management code of
       Linux inside the mremap(2) system call. Due to missing function
       return value check of internal functions a local attacker can gain
       root privileges. Fixed upstream in Linux 2.4.25 and 2.6.3.

    For the stable distribution (woody) these problems have been fixed in
    version 32.3 of kernel-image-2.4.17-hppa.

    For the unstable distribution (sid) these problems have been fixed in
    version 2.4.25-1 of kernel-image-2.4.25-hppa.

    We recommend that you upgrade your Linux kernel packages immediately.

    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: 713 f5b7956a75870aaff51ccb52c96a0ab2
          Size/MD5 checksum: 29958048 44cb813807b9b1c45984fadfc18d4ba1

      Architecture independent components:

          Size/MD5 checksum: 24109698 cefc1a3ebfce0d30f97b556ed62674d4

      HP Precision architecture:

          Size/MD5 checksum: 3531296 605f593d9648fd2ab1aa2d6f106263af
          Size/MD5 checksum: 2737992 793396152e7dea3f9a1ea8ea10c4dbe7
          Size/MD5 checksum: 2870174 2f2df476a902378a9efa96a79367eed2
          Size/MD5 checksum: 3024282 1a687ccbedbba298a7e98ba7d2b20650
          Size/MD5 checksum: 3165702 795b734b1e17a75a76c40af8f49e6ec7

      These files will probably be moved into the stable distribution on
      its next revision.

    - ---------------------------------------------------------------------------------
    For apt-get: deb http://security.debian.org/ stable/updates main
    For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
    Mailing list: debian-security-announce@lists.debian.org
    Package info: `apt-cache show <pkg>' and http://packages.debian.org/>

    Version: GnuPG v1.2.4 (GNU/Linux)

    -----END PGP SIGNATURE-----

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