Debian: New reprepro packages fix authentication bypass

    Date23 Oct 2007
    CategoryDebian
    4152
    Posted ByLinuxSecurity Advisories
    It was discovered that reprepro, a tool to create a repository of Debian packages, when updating from a remote site only checks for the validity of known signatures, and thus does not reject packages with only unknown signatures. This allows an attacker to bypass this authentication mechanism
    - --------------------------------------------------------------------------
    Debian Security Advisory DSA 1394-1                    This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                            Thijs Kinkhorst
    October 23rd, 2007                      http://www.debian.org/security/faq
    - --------------------------------------------------------------------------
    
    Package        : reprepro
    Vulnerability  : authentication bypass
    Problem-Type   : remote
    Debian-specific: yes
    CVE ID         : CVE-2007-4739
    Debian Bug     : 440535
    
    It was discovered that reprepro, a tool to create a repository of Debian
    packages, when updating from a remote site only checks for the validity of
    known signatures, and thus does not reject packages with only unknown
    signatures. This allows an attacker to bypass this authentication
    mechanism.
    
    The oldstable distribution (sarge) is not affected by this problem.
    
    For the stable distribution (etch) this problem has been fixed in
    version 1.3.1+1-1.
    
    For the unstable distribution (sid) this problem has been fixed in
    version 2.2.4-1.
    
    We recommend that you upgrade your reprepro 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 4.0 alias etch
    - -------------------------------
    
      Source archives:
    
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1.dsc
          Size/MD5 checksum:      934 a9e32d707c054a2835e49b11d84abe79
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1.diff.gz
          Size/MD5 checksum:     6837 478f94313599732c8f8defa8ec7c2e60
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1.orig.tar.gz
          Size/MD5 checksum:   294938 8f171568b73b258bcf2e83a424c741c6
    
      Alpha architecture:
    
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_alpha.deb
          Size/MD5 checksum:   233240 cd1298547400c3dcdbae69213c7a116d
    
      AMD64 architecture:
    
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_amd64.deb
          Size/MD5 checksum:   219738 4e0e51365740d3a9d7c2262c58c51ad9
    
      ARM architecture:
    
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_arm.deb
          Size/MD5 checksum:   200764 2713c4a6f8160eff1df1aacb9c73a037
    
      HP Precision architecture:
    
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_hppa.deb
          Size/MD5 checksum:   222708 e21a90fb3e6461fb3bcd35f7e940aaea
    
      Intel IA-32 architecture:
    
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_i386.deb
          Size/MD5 checksum:   207614 e7d5520eeccc12e4fe3269fad2dfc114
    
      Intel IA-64 architecture:
    
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_ia64.deb
          Size/MD5 checksum:   305744 372b85433ec8ffee768645cf017b8493
    
      Big endian MIPS architecture:
    
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_mips.deb
          Size/MD5 checksum:   215216 2d0a2442cbdd5a11413545e7aecf3ba0
    
      Little endian MIPS architecture:
    
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_mipsel.deb
          Size/MD5 checksum:   216124 fea785909c963b3ed18e6f15e51bda23
    
      PowerPC architecture:
    
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_powerpc.deb
          Size/MD5 checksum:   214286 4bafb8847d749ed05a0b9195db582cf7
    
      IBM S/390 architecture:
    
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_s390.deb
          Size/MD5 checksum:   214650 fa8bcb55f53290e2be693b29f6a28e33
    
      Sun Sparc architecture:
    
        http://security.debian.org/pool/updates/main/r/reprepro/reprepro_1.3.1+1-1_sparc.deb
          Size/MD5 checksum:   200260 d2ffde092084998af9cd887d5e06c12b
    
    
      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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