Debian: New libnss-ldap packages fix denial of service

    Date11 Dec 2007
    CategoryDebian
    2512
    Posted ByLinuxSecurity Advisories
    It was reported that a race condition exists in libnss-ldap, an NSS module for using LDAP as a naming service, which could cause denial of service attacks when applications use pthreads.
    - ------------------------------------------------------------------------
    Debian Security Advisory DSA-1430-1                  This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                               Steve Kemp
    December 11, 2007                     http://www.debian.org/security/faq
    - ------------------------------------------------------------------------
    
    Package        : libnss-ldap
    Vulnerability  : denial of service
    Problem type   : local
    Debian-specific: no
    CVE Id(s)      : CVE-2007-5794
    Debian Bug     : 453868
    
    It was reported that a race condition exists in libnss-ldap, an
    NSS module for using LDAP as a naming service, which could cause
    denial of service attacks when applications use pthreads.
    
    This problem was spotted in the dovecot IMAP/POP server but
    potentially affects more programs.
    
    For the stable distribution (etch), this problem has been fixed in version
    251-7.5etch1.
    
    For the old stable distribution (sarge), this problem has been fixed in
    version 238-1sarge1.
    
    For the unstable distribution (sid), this problem has been fixed in
    version 256-1.
    
    We recommend that you upgrade your libnss-ldap 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/libn/libnss-ldap/libnss-ldap_238.orig.tar.gz
        Size/MD5 checksum:   219945 97fd929b381329b972b3c3ddca5a4bbf
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1.diff.gz
        Size/MD5 checksum:    26236 c7191ee3845dc23ccf2712e78daed8f1
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1.dsc
        Size/MD5 checksum:      681 3176fefa1d8d04afa9d3b458e40694a6
    
    alpha architecture (DEC Alpha)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_alpha.deb
        Size/MD5 checksum:    86756 30a9c1691dcec614e36fdea923ba3906
    
    amd64 architecture (AMD x86_64 (AMD64))
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_amd64.deb
        Size/MD5 checksum:    80218 18d9da468326040f466c10cac6f50734
    
    arm architecture (ARM)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_arm.deb
        Size/MD5 checksum:    79216 adf473266dd1de600cc0360f697ec7d2
    
    hppa architecture (HP PA RISC)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_hppa.deb
        Size/MD5 checksum:    86324 f98ade45a20c5426ef30cb1290e34164
    
    i386 architecture (Intel ia32)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_i386.deb
        Size/MD5 checksum:    78894 7bb744d57899867a0b1c326372de76ce
    
    ia64 architecture (Intel ia64)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_ia64.deb
        Size/MD5 checksum:    91930 d25cce59d45f8b8dc90b0fe3fcbf3ce0
    
    m68k architecture (Motorola Mc680x0)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_m68k.deb
        Size/MD5 checksum:    76894 3c574bc294eb02c337664de43e814f7f
    
    mips architecture (MIPS (Big Endian))
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_mips.deb
        Size/MD5 checksum:    80482 0e54d051dde87e3b7984650c47bc3b3e
    
    mipsel architecture (MIPS (Little Endian))
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_mipsel.deb
        Size/MD5 checksum:    80594 9f3f4b5d6d7c9e6f84edd9ab40767e04
    
    powerpc architecture (PowerPC)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_powerpc.deb
        Size/MD5 checksum:    81652 7ca152887a041fc3dc674a77e707d23f
    
    s390 architecture (IBM S/390)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_s390.deb
        Size/MD5 checksum:    83806 eab2386a51d35e31a4dd7fd0ed832a6d
    
    sparc architecture (Sun SPARC/UltraSPARC)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_238-1sarge1_sparc.deb
        Size/MD5 checksum:    79224 7d2ec91b89037fd137e98d3640ba1bb4
    
    
    Debian GNU/Linux 4.0 alias etch
    - -------------------------------
    
    Source archives:
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1.diff.gz
        Size/MD5 checksum:   149322 04aa24732e69f40e5c3ab629b7e412d4
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251.orig.tar.gz
        Size/MD5 checksum:   228931 a80718b3f7cf46f2579a26f9d6fbcd46
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1.dsc
        Size/MD5 checksum:      683 007acb586d8bf61058c446a08aae4804
    
    alpha architecture (DEC Alpha)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_alpha.deb
        Size/MD5 checksum:   108812 1150911f5446d2bc7838fd3d9d56329d
    
    amd64 architecture (AMD x86_64 (AMD64))
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_amd64.deb
        Size/MD5 checksum:   105206 7f2e2292e5c213a4d59e0c7240a9ca7e
    
    arm architecture (ARM)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_arm.deb
        Size/MD5 checksum:   103946 bb4984bf517834f0278f00e8ba32a4ba
    
    hppa architecture (HP PA RISC)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_hppa.deb
        Size/MD5 checksum:   111288 2a7f758efdf03c296b2feea08205cdc7
    
    i386 architecture (Intel ia32)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_i386.deb
        Size/MD5 checksum:   103732 0f29d1991d204b4a710e5f74bf056984
    
    ia64 architecture (Intel ia64)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_ia64.deb
        Size/MD5 checksum:   120362 e5649299793b90c3987305ac2212afad
    
    mips architecture (MIPS (Big Endian))
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_mips.deb
        Size/MD5 checksum:   105148 1f42e34610dc974a6a5ff19a2dff1b24
    
    mipsel architecture (MIPS (Little Endian))
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_mipsel.deb
        Size/MD5 checksum:   105360 af1ff4fd5a543b50f704a022798ebed0
    
    powerpc architecture (PowerPC)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_powerpc.deb
        Size/MD5 checksum:   106458 13b702d831bde6e52507fdd466573122
    
    s390 architecture (IBM S/390)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_s390.deb
        Size/MD5 checksum:   108466 10bc9129adbc56dd6c75569fc27a221c
    
    sparc architecture (Sun SPARC/UltraSPARC)
    
      http://security.debian.org/pool/updates/main/libn/libnss-ldap/libnss-ldap_251-7.5etch1_sparc.deb
        Size/MD5 checksum:   103134 12c84546a715bca647b86943a226b361
    
    
      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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