Debian: New gdm packages fix local root exploit

    Date23 Apr 2006
    CategoryDebian
    5380
    Posted ByLinuxSecurity Advisories
    A vulnerability has been identified in gdm, a display manager for X, that could allow a local attacker to gain elevated privileges by exploiting a race condition in the handling of the .ICEauthority file.
    - --------------------------------------------------------------------------
    Debian Security Advisory DSA 1040-1                    This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                             Martin Schulze
    April 24th, 2006                        http://www.debian.org/security/faq
    - --------------------------------------------------------------------------
    
    Package        : gdm
    Vulnerability  : programming error
    Problem type   : local
    Debian-specific: no
    CVE ID         : CVE-2006-1057
    BugTraq ID     : 17635
    
    A vulnerability has been identified in gdm, a display manager for X,
    that could allow a local attacker to gain elevated privileges by
    exploiting a race condition in the handling of the .ICEauthority file.
    
    The old stable distribution (woody) is not affected by this problem.
    
    For the stable distribution (sarge) this problem has been fixed in
    version 2.6.0.8-1sarge2.
    
    For the unstable distribution (sid) this problem will be fixed in
    version 2.14.1-1.
    
    We recommend that you upgrade your gdm package.
    
    
    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 3.1 alias sarge
    - --------------------------------
    
      Source archives:
    
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2.dsc
          Size/MD5 checksum:      732 5e615263c621f3166eab26233249934b
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2.diff.gz
          Size/MD5 checksum:   258548 323d831f75f4a784b754ee4d6902120f
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8.orig.tar.gz
          Size/MD5 checksum:  5619049 1417d176925a4a24c465c043df7b6a39
    
      Alpha architecture:
    
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2_alpha.deb
          Size/MD5 checksum:  3243636 3641c4ee397d6f70fa15b439da1ca29d
    
      AMD64 architecture:
    
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2_amd64.deb
          Size/MD5 checksum:  3178276 03057b54637e652dd37f98bf94e3b575
    
      ARM architecture:
    
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2_arm.deb
          Size/MD5 checksum:  3124804 beb9189cf49420259a51210c1864cc08
    
      Intel IA-32 architecture:
    
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2_i386.deb
          Size/MD5 checksum:  3144008 36c7dfed8ab7ece8d5b75fa720c6120d
    
      Intel IA-64 architecture:
    
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2_ia64.deb
          Size/MD5 checksum:  3328900 c6b11ef8670cb3f63d946e0779d65c3f
    
      HP Precision architecture:
    
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2_hppa.deb
          Size/MD5 checksum:  3185510 486b1377061ad3655a34d17abc9ece23
    
      Motorola 680x0 architecture:
    
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2_m68k.deb
          Size/MD5 checksum:  3115464 a002336849c45be8d7a70630a9dbe714
    
      Big endian MIPS architecture:
    
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2_mips.deb
          Size/MD5 checksum:  3155474 dea4b0e6dbb2b1a4ac0b5a90e9a93035
    
      Little endian MIPS architecture:
    
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2_mipsel.deb
          Size/MD5 checksum:  3147934 19dc1118fec157e9ae4f7e40418a7cbb
    
      PowerPC architecture:
    
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2_powerpc.deb
          Size/MD5 checksum:  3172026 611508441a9bcd7df2bb3ac486a20da4
    
      IBM S/390 architecture:
    
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2_s390.deb
          Size/MD5 checksum:  3185506 f03786d134fda10cfb7ce9c6b4e13044
    
      Sun Sparc architecture:
    
        http://security.debian.org/pool/updates/main/g/gdm/gdm_2.6.0.8-1sarge2_sparc.deb
          Size/MD5 checksum:  3137658 ea03ac108174033db47559465da66184
    
    
      These files will probably be moved into the stable distribution on
      its next update.
    
    - ---------------------------------------------------------------------------------
    For apt-get: deb http://security.debian.org/ stable/updates main
    For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
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