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    Debian: DSA-1980-1: New ircd-hybrid/ircd-ratbox packages fix arbitrary code execution

    Date 27 Jan 2010
    Posted By LinuxSecurity Advisories
    David Leadbeater discovered an integer underflow that could be triggered via the LINKS command and can lead to a denial of service or the execution of arbitrary code (CVE-2009-4016). This issue affects both,
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    Debian Security Advisory DSA-1980-1                  This email address is being protected from spambots. You need JavaScript enabled to view it.                      Steffen Joeris
    January 27, 2010            
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    Package        : ircd-hybrid/ircd-ratbox
    Vulnerability  : integer underflow/denial of service
    Problem type   : remote
    Debian-specific: no
    CVE Ids        : CVE-2009-4016 CVE-2010-0300
    David Leadbeater discovered an integer underflow that could be triggered
    via the LINKS command and can lead to a denial of service or the
    execution of arbitrary code (CVE-2009-4016). This issue affects both,
    ircd-hybrid and ircd-ratbox.
    It was discovered that the ratbox IRC server is prone to a denial of
    service attack via the HELP command. The ircd-hybrid package is not
    vulnerable to this issue (CVE-2010-0300).
    For the stable distribution (lenny), this problem has been fixed in
    version 1:7.2.2.dfsg.2-4+lenny1 of the ircd-hybrid package and in
    version 2.2.8.dfsg-2+lenny1 of ircd-ratbox.
    Due to a bug in the archive software it was not possible to release the
    fix for the oldstable distribution (etch) simultaneously. The packages
    will be released as version 7.2.2.dfsg.2-3+etch1 once they become
    For the testing distribution (squeeze) and the unstable distribution
    (sid), this problem will be fixed soon.
    We recommend that you upgrade your ircd-hybrid/ircd-ratbox packages.
    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 5.0 alias lenny
    - --------------------------------
    Debian (stable)
    - ---------------
    Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.
    Source archives:
        Size/MD5 checksum:     1139 a48d912892925013b37fb773841d6710
        Size/MD5 checksum:   756749 75896381ea6330aea860b35fff3c34bb
        Size/MD5 checksum:   115007 a8d23129d0675ff779e5e315f8632a6b
        Size/MD5 checksum:    18289 04a221b2b8dfd0654778a6608c7cb66b
        Size/MD5 checksum:     1230 f79125aafcc5d9fcbd09bedadd69fce7
        Size/MD5 checksum:   673439 0eb7d1430a997a37af03f8b2f9eed4bb
    Architecture independent packages:
        Size/MD5 checksum:    65708 85dba185f2fdd9e7b3c423ae8722cc2f
    alpha architecture (DEC Alpha)
        Size/MD5 checksum:   568252 35a559f24895dab0fbe71f6af3a8c0b1
        Size/MD5 checksum:   929788 583d32d5afc9747d824499183d4a5761
        Size/MD5 checksum:   660008 1a2bca514133dbc27f91bca69ed2122e
    amd64 architecture (AMD x86_64 (AMD64))
        Size/MD5 checksum:   937710 2867b5535578c017699418acab7565b7
        Size/MD5 checksum:   542006 52ca320cdd28849bd65065c921f03623
        Size/MD5 checksum:   634416 d320f0d1b77cb08cb0caa9c9644d13aa
    arm architecture (ARM)
        Size/MD5 checksum:   589350 451a5bcf2b4b8f40e39128be3fdc479d
    armel architecture (ARM EABI)
        Size/MD5 checksum:   894654 4daf0784d8865e75c378630d7cf2d870
        Size/MD5 checksum:   595420 bf40953d00dbccd069b1596b6c84eadc
        Size/MD5 checksum:   504238 785107a5a9fa3dcd88f2a12916d47092
    hppa architecture (HP PA RISC)
        Size/MD5 checksum:   908902 8e1ebf2baf27a71f008eba792cdd87d7
        Size/MD5 checksum:   647938 c67f473e9b4ae77a5578359c76ff5e75
        Size/MD5 checksum:   554656 00af4d733f43a8404b2e62718a4bd341
    i386 architecture (Intel ia32)
        Size/MD5 checksum:   591346 7a9ccd0273005c654f5e78d6ba9d29d6
        Size/MD5 checksum:   891002 796bbd22c352ec873c9705e560492dbe
        Size/MD5 checksum:   499796 24e0d7b1284b3d7c3688366e9a8c493e
    ia64 architecture (Intel ia64)
        Size/MD5 checksum:   783482 28568b727f452ef622cb8939618dde23
        Size/MD5 checksum:   685370 17507ab3172ad5e1fd88ea05c70f68c4
        Size/MD5 checksum:   906848 4561656a5c033c9b647f146a13e79322
    mips architecture (MIPS (Big Endian))
        Size/MD5 checksum:   506502 854cd9c98a5eaf38e3f815fd79d20c9a
        Size/MD5 checksum:   918546 5307013e962c38b405db7507e251a31d
        Size/MD5 checksum:   601610 9fc6640bb08a3af295589b72f6667087
    mipsel architecture (MIPS (Little Endian))
        Size/MD5 checksum:   912794 6024ad0383d9696c727203a0af740630
        Size/MD5 checksum:   504864 ac200b212ed5ed69095b90bba53558f3
        Size/MD5 checksum:   599656 f32d222728582a36d1a75494d87340af
    powerpc architecture (PowerPC)
        Size/MD5 checksum:   732146 445dc7f28c92455ed3293b9b6b795020
        Size/MD5 checksum:  1001328 bca90faf524223bb06bb47774ee7d147
        Size/MD5 checksum:   639750 282ee75ee6b2e2fefcda221fb930bc6b
    s390 architecture (IBM S/390)
        Size/MD5 checksum:   905196 cc484c7b4f807227ff75af729504ca0c
        Size/MD5 checksum:   537006 3c24b451ae8fdd846d982982fa652535
        Size/MD5 checksum:   616620 d9bba18dc19104a06d57403bf93e64a6
    sparc architecture (Sun SPARC/UltraSPARC)
        Size/MD5 checksum:   843350 99cd0379e8623f3265bbba3eb8578e86
        Size/MD5 checksum:   586408 87cbcdd0fadac9c2d17c71cb5df907f7
        Size/MD5 checksum:   498376 a117209c1ed8b9104bee8a154d390fd0
      These files will probably be moved into the stable distribution on
      its next update.
    - ---------------------------------------------------------------------------------
    For apt-get: deb stable/updates main
    For dpkg-ftp: dists/stable/updates/main
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    Package info: `apt-cache show ' and

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