Debian: DSA-3436-1: openssl security update

    Date08 Jan 2016
    CategoryDebian
    37
    Posted ByLinuxSecurity Advisories
    Karthikeyan Bhargavan and Gaetan Leurent at INRIA discovered a flaw in the TLS 1.2 protocol which could allow the MD5 hash function to be used for signing ServerKeyExchange and Client Authentication packets during a TLS handshake. A man-in-the-middle attacker could exploit this flaw to
    
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    Debian Security Advisory DSA-3436-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    January 08, 2016                      https://www.debian.org/security/faq
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    Package        : openssl
    CVE ID         : CVE-2015-7575
    
    Karthikeyan Bhargavan and Gaetan Leurent at INRIA discovered a flaw in
    the TLS 1.2 protocol which could allow the MD5 hash function to be used
    for signing ServerKeyExchange and Client Authentication packets during a
    TLS handshake. A man-in-the-middle attacker could exploit this flaw to
    conduct collision attacks to impersonate a TLS server or an
    authenticated TLS client.
    
    More information can be found at
    https://www.mitls.org/pages/attacks/SLOTH
    
    For the oldstable distribution (wheezy), this problem has been fixed
    in version 1.0.1e-2+deb7u19.
    
    For the stable distribution (jessie), the testing distribution (stretch)
    and the unstable distribution (sid), this issue was already addressed in
    version 1.0.1f-1.
    
    We recommend that you upgrade your openssl packages.
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://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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