Debian: DSA-3053-1: openssl security update

    Date 16 Oct 2014
    110
    Posted By LinuxSecurity Advisories
    Several vulnerabilities have been found in OpenSSL, the Secure Sockets Layer library and toolkit. CVE-2014-3513
    
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    Debian Security Advisory DSA-3053-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                           Thijs Kinkhorst
    October 16, 2014                       https://www.debian.org/security/faq
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    Package        : openssl
    CVE ID         : CVE-2014-3513 CVE-2014-3566 CVE-2014-3567 CVE-2014-3568
    
    Several vulnerabilities have been found in OpenSSL, the Secure Sockets
    Layer library and toolkit.
    
    CVE-2014-3513
    
        A memory leak flaw was found in the way OpenSSL parsed the DTLS Secure
        Real-time Transport Protocol (SRTP) extension data. A remote attacker
        could send multiple specially crafted handshake messages to exhaust
        all available memory of an SSL/TLS or DTLS server.
    
    CVE-2014-3566 ("POODLE")
    
        A flaw was found in the way SSL 3.0 handled padding bytes when
        decrypting messages encrypted using block ciphers in cipher block
        chaining (CBC) mode. This flaw allows a man-in-the-middle (MITM)
        attacker to decrypt a selected byte of a cipher text in as few as 256
        tries if they are able to force a victim application to repeatedly send
        the same data over newly created SSL 3.0 connections. 
    
        This update adds support for Fallback SCSV to mitigate this issue.
    
    CVE-2014-3567
    
        A memory leak flaw was found in the way an OpenSSL handled failed
        session ticket integrity checks. A remote attacker could exhaust all
        available memory of an SSL/TLS or DTLS server by sending a large number
        of invalid session tickets to that server. 
    
    CVE-2014-3568
    
        When OpenSSL is configured with "no-ssl3" as a build option, servers
        could accept and complete a SSL 3.0 handshake, and clients could be
        configured to send them.
    
    For the stable distribution (wheezy), these problems have been fixed in
    version 1.0.1e-2+deb7u13.
    
    For the unstable distribution (sid), these problems have been fixed in
    version 1.0.1j-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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