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    Debian: DSA-3417-1: bouncycastle security update

    Date
    254
    Posted By
    Tibor Jager, Jörg Schwenk, and Juraj Somorovsky, from Horst Görtz Institute for IT Security, published a paper in ESORICS 2015 where they describe an invalid curve attack in Bouncy Castle Crypto, a Java library for cryptography. An attacker is able to recover private Elliptic Curve
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-3417-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                            Luciano Bello
    December 14, 2015                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : bouncycastle
    CVE ID         : CVE-2015-7940
    Debian Bug     : 802671
    
    Tibor Jager, Jörg Schwenk, and Juraj Somorovsky, from Horst Görtz
    Institute for IT Security, published a paper in ESORICS 2015 where they
    describe an invalid curve attack in Bouncy Castle Crypto, a Java library
    for cryptography. An attacker is able to recover private Elliptic Curve
    keys from different applications, for example, TLS servers.
    
    More information:
    https://web-in-security.blogspot.ca/2015/09/practical-invalid-curve-attacks.html
    Practical Invalid Curve Attacks on TLS-ECDH:
    https://euklid.org/pdf/ECC_Invalid_Curve.pdf
    
    For the oldstable distribution (wheezy), this problem has been fixed
    in version 1.44+dfsg-3.1+deb7u1.
    
    For the stable distribution (jessie), this problem has been fixed in
    version 1.49+dfsg-3+deb8u1.
    
    For the unstable distribution (sid), this problem has been fixed in
    version 1.51-2.
    
    We recommend that you upgrade your bouncycastle 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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