Debian: DSA-3184-1: gnupg security update

    Date12 Mar 2015
    CategoryDebian
    29
    Posted ByLinuxSecurity Advisories
    Multiple vulnerabilities were discovered in GnuPG, the GNU Privacy Guard: CVE-2014-3591
    
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    Debian Security Advisory DSA-3184-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    http://www.debian.org/security/                        Alessandro Ghedini
    March 12, 2015                         http://www.debian.org/security/faq
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    Package        : gnupg
    CVE ID         : CVE-2014-3591 CVE-2015-0837 CVE-2015-1606
    
    Multiple vulnerabilities were discovered in GnuPG, the GNU Privacy Guard:
    
    CVE-2014-3591
    
        The Elgamal decryption routine was susceptible to a side-channel
        attack discovered by researchers of Tel Aviv University. Ciphertext
        blinding was enabled to counteract it. Note that this may have a
        quite noticeable impact on Elgamal decryption performance.
    
    CVE-2015-0837
    
        The modular exponentiation routine mpi_powm() was susceptible to a
        side-channel attack caused by data-dependent timing variations when
        accessing its internal pre-computed table.
    
    CVE-2015-1606
    
        The keyring parsing code did not properly reject certain packet
        types not belonging in a keyring, which caused an access to memory
        already freed. This could allow remote attackers to cause a denial
        of service (crash) via crafted keyring files.
    
    For the stable distribution (wheezy), these problems have been fixed in
    version 1.4.12-7+deb7u7.
    
    For the upcoming stable distribution (jessie), these problems have been
    fixed in version 1.4.18-7.
    
    For the unstable distribution (sid), these problems have been fixed in
    version 1.4.18-7.
    
    We recommend that you upgrade your gnupg 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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