Debian: DSA-2566-1: exim4 security update

    Date26 Oct 2012
    CategoryDebian
    54
    Posted ByLinuxSecurity Advisories
    It was discovered that Exim, a mail transport agent, is not properly handling the decoding of DNS records for DKIM. Specifically, crafted records can yield to a heap-based buffer overflow. An attacker can exploit this flaw to execute arbitrary code.
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    Debian Security Advisory DSA-2566-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                                Nico Golde
    October 25, 2012                       http://www.debian.org/security/faq
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    Package        : exim4
    Vulnerability  : heap-based buffer overflow
    Problem type   : remote
    Debian-specific: no
    CVE ID         : CVE-2012-5671
    
    It was discovered that Exim, a mail transport agent, is not properly
    handling the decoding of DNS records for DKIM.  Specifically, crafted
    records can yield to a heap-based buffer overflow.  An attacker can
    exploit this flaw to execute arbitrary code.
    
    For the stable distribution (squeeze), this problem has been fixed in
    version 4.72-6+squeeze3.
    
    For the testing distribution (wheezy), this problem has been fixed in
    version 4.80-5.1.
    
    For the unstable distribution (sid), this problem has been fixed in
    version 4.80-5.1.
    
    
    We recommend that you upgrade your exim4 packages.
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: http://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    
    
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