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    Debian: DSA-1870-1: New pidgin packages fix arbitrary code execution

    Posted By
    Federico Muttis discovered that libpurple, the shared library that adds support for various instant messaging networks to the pidgin IM client, is vulnerable to a heap-based buffer overflow. This issue exists because of an incomplete fix for CVE-2008-2927 and CVE-2009-1376. An attacker can
    Hash: SHA1
    - --------------------------------------------------------------------------
    Debian Security Advisory DSA-1870-1                    [email protected]                                 Nico Golde
    August 19th, 2009             
    - --------------------------------------------------------------------------
    Package        : pidgin
    Vulnerability  : insufficient input validation
    Problem type   : remote
    Debian-specific: no
    CVE ID         : CVE-2009-2694
    Federico Muttis discovered that libpurple, the shared library that adds
    support for various instant messaging networks to the pidgin IM client, is
    vulnerable to a heap-based buffer overflow.  This issue exists because of
    an incomplete fix for CVE-2008-2927 and CVE-2009-1376.  An attacker can
    exploit this by sending two consecutive SLP packets to a victim via MSN.
    The first packet is used to create an SLP message object with an offset of
    zero, the second packet then contains a crafted offset which hits the
    vulnerable code originally fixed in CVE-2008-2927 and CVE-2009-1376 and
    allows an attacker to execute arbitrary code.
    Note: Users with the "Allow only the users below" setting are not vulnerable
          to this attack. If you can't install the below updates you may want to
          set this via Tools->Privacy.
    For the stable distribution (lenny), this problem has been fixed in
    version 2.4.3-4lenny3.
    For the testing distribution (squeeze), this problem will be fixed soon.
    For the unstable distribution (sid), this problem has been fixed in
    version 2.5.9-1.
    We recommend that you upgrade your pidgin 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: 13123610 d0e0bd218fbc67df8b2eca2f21fcd427
        Size/MD5 checksum:     1784 e9bc246ba4f0ca8dab1436d66bd00adb
        Size/MD5 checksum:    67928 545981a43e8c1b905ea1adb0da9b1b4d
    Architecture independent packages:
        Size/MD5 checksum:   133552 d4adb0ff7da09da14d34f3ae9484ea94
        Size/MD5 checksum:  7018488 09b2f817c71774e2108b4366602f5dcf
        Size/MD5 checksum:   276890 dab9b30c46f9a2c03af02d381cb029cf
        Size/MD5 checksum:   354146 291a984ea00f92d67a3d0b99040d7d72
        Size/MD5 checksum:   159388 f73823fb36f1d0487cc29d0d71a7a471
    alpha architecture (DEC Alpha)
        Size/MD5 checksum:   369628 cd01f407199d1ca84f2502c4f4d169db
        Size/MD5 checksum:   779192 fdb6b047a48f3c255fa13a329dc5fc35
        Size/MD5 checksum:  5545960 fe294dfeb4dd7ca7ff6e5636230c856c
        Size/MD5 checksum:  1803004 81ef9e0af747f0b236b25b1407d38266
    amd64 architecture (AMD x86_64 (AMD64))
        Size/MD5 checksum:   345894 4b31436a96b5834d8ebe3639b837093d
        Size/MD5 checksum:  5668550 58b27242ababd545a49b080527cd8769
        Size/MD5 checksum:   722220 e249e5fb7581ec28a0f4e0a32fab3d2c
        Size/MD5 checksum:  1706142 2f1f823ff5c26eb1cc67874633a6891d
    arm architecture (ARM)
        Size/MD5 checksum:   315182 d935ef53df9f333d0b2eb8d38e2bb753
        Size/MD5 checksum:   655088 8631310cc8beb7902fef81b51af01fd8
        Size/MD5 checksum:  1490226 cfe0d6727f4a9aa671a3413817fb11ae
        Size/MD5 checksum:  5348504 d1ef7ddf61f0e44f46c646e4f4add280
    armel architecture (ARM EABI)
        Size/MD5 checksum:  5386792 c5d2643ba6bc47aa41de04b870bbca3d
        Size/MD5 checksum:   666444 507fd3b558360b054d67843f3dba2689
        Size/MD5 checksum:   318828 fcaea331f126eb2329bf54d0c8df7269
        Size/MD5 checksum:  1496868 1ac8d58c00019b1b0a3d742d4a02d074
    hppa architecture (HP PA RISC)
        Size/MD5 checksum:   361112 366c71f9035322402a6c0bae4fe4d8a0
        Size/MD5 checksum:  5489632 53fed112a1e8642c0f682fc29f361a4a
        Size/MD5 checksum:  1827630 14a3a37c121b1e13c031f8894c5f4f64
        Size/MD5 checksum:   753796 d50a7d1ba32773f791872bce6305b92c
    i386 architecture (Intel ia32)
        Size/MD5 checksum:  1584144 54aeb3d38dd0cae7e486dab84a82cbb8
        Size/MD5 checksum:   680948 8144b0b957e103cedd0a617e37a3feae
        Size/MD5 checksum:   326656 4d75eb89954a304b036d5f14e751f72a
        Size/MD5 checksum:  5374132 2640104cb54145afda5a685607a1e74c
    ia64 architecture (Intel ia64)
        Size/MD5 checksum:  5223582 02aa16c2f23681d9123f0fe35e3414fd
        Size/MD5 checksum:   434672 fcc166e5359603ec5a02953f36b30e33
        Size/MD5 checksum:   948114 38eb5dfe87ba4ffa01ace8cf7db745c4
        Size/MD5 checksum:  2194278 82db59131767124c1cef53a9ef03de9e
    mips architecture (MIPS (Big Endian))
        Size/MD5 checksum:  5655702 d2694b5874bccdc4bde1a2debf2f1ad7
        Size/MD5 checksum:   653944 c39d08c1fe964baa5c1ff533432f7c4d
        Size/MD5 checksum:  1373212 9673d5480375e78dae3741b32615e112
        Size/MD5 checksum:   318262 aaff22798d1a88aa2d2e04b24b9a7932
    powerpc architecture (PowerPC)
        Size/MD5 checksum:  5579128 be3d6412d3c5f41344f2b6a5a8f39bfe
        Size/MD5 checksum:   753872 81133dbb351067d2d3ef6bbc136c106f
        Size/MD5 checksum:  1760422 379017e7d47927678f6b404aa4d12936
        Size/MD5 checksum:   362944 f0cc1dea3b629fb34549d228599bd567
      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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