Debian: New man-db packages fix arbitrary code execution

    Date06 Apr 2007
    CategoryDebian
    6358
    Posted ByLinuxSecurity Advisories
    A buffer overflow has been dicovered in the man command that could allow an attacker to execute code as the man user by providing specially crafted arguments to the -H flag. This is likely to be an issue only on machines with the man and mandb programs installed setuid.
    - ------------------------------------------------------------------------
    Debian Security Advisory DSA-1278-1                This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                         Noah Meyerhans
    April 06, 2007
    - ------------------------------------------------------------------------
    
    Package        : man-db
    Vulnerability  : buffer overflow
    Problem type   : local
    Debian-specific: no
    CVE Id(s)      : CVE-2006-4250
    
    A buffer overflow has been dicovered in the man command that could
    allow an attacker to execute code as the man user by providing
    specially crafted arguments to the -H flag.  This is likely to be an
    issue only on machines with the man and mandb programs installed
    setuid.
    
    For the stable distribution (sarge), this problem has been fixed in
    version 2.4.2-21sarge1
    
    For the upcoming stable distribution (etch) and the unstable
    distribution (sid), this problem has been fixed in version 2.4.3-5.
    
    We recommend that you upgrade your man-db 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 3.1 (stable)
    - -------------------
    
    Stable updates are available for alpha, amd64, arm, hppa, i386, ia64, m68k, mips, mipsel, powerpc, s390 and sparc.
    
    Source archives:
    
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2.orig.tar.gz
        Size/MD5 checksum:   730134 15855f899a76aa302c83ffec81526ab4
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1.dsc
        Size/MD5 checksum:      673 add0d09882262adb0cbbde6845af0fbb
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1.diff.gz
        Size/MD5 checksum:   104832 c5befcaee1865b8582d7bbe8ac21f537
    
    alpha architecture (DEC Alpha)
    
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1_alpha.deb
        Size/MD5 checksum:   641194 92131ea27cf1f17fcdaaea36accfa930
    
    amd64 architecture (AMD x86_64 (AMD64))
    
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1_amd64.deb
        Size/MD5 checksum:   607660 464ca88aca62d8cd8ee84072993ce0f7
    
    arm architecture (ARM)
    
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1_arm.deb
        Size/MD5 checksum:   559372 1d5563046ce831b2b7088caa044694de
    
    hppa architecture (HP PA RISC)
    
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1_hppa.deb
        Size/MD5 checksum:   609530 efa1144900b1ee014dd93eb5fb1bf223
    
    i386 architecture (Intel ia32)
    
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1_i386.deb
        Size/MD5 checksum:   579774 feb44785cde0c8f64cd22f35aa674ab8
    
    ia64 architecture (Intel ia64)
    
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1_ia64.deb
        Size/MD5 checksum:   687208 1400e1e708ec327de4517557de51eca3
    
    m68k architecture (Motorola Mc680x0)
    
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1_m68k.deb
        Size/MD5 checksum:   544688 d9bd8753aeaf7ceaa7ff29903085ca33
    
    mips architecture (MIPS (Big Endian))
    
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1_mips.deb
        Size/MD5 checksum:   609644 b8cc5d9b03e70a2bf671983a31d858ba
    
    mipsel architecture (MIPS (Little Endian))
    
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1_mipsel.deb
        Size/MD5 checksum:   611036 6e3cf522a309f851111ce579d1985c83
    
    powerpc architecture (PowerPC)
    
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1_powerpc.deb
        Size/MD5 checksum:   602320 05dac7703f16fde62ecf61f07e8ecf97
    
    s390 architecture (IBM S/390)
    
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1_s390.deb
        Size/MD5 checksum:   600014 a9d162c3c25869260895ada582042e95
    
    sparc architecture (Sun SPARC/UltraSPARC)
    
      http://security.debian.org/pool/updates/main/m/man-db/man-db_2.4.2-21sarge1_sparc.deb
        Size/MD5 checksum:   574580 ee5ab4089c0ff87d3f976f82b4e01c27
    
    
      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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