Debian: DSA-3866-1: strongswan security update

    Date30 May 2017
    CategoryDebian
    361
    Posted ByLinuxSecurity Advisories
    Two denial of service vulnerabilities were identified in strongSwan, an IKE/IPsec suite, using Google's OSS-Fuzz fuzzing project. CVE-2017-9022
    
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    Debian Security Advisory DSA-3866-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                        Yves-Alexis Perez
    May 30, 2017                          https://www.debian.org/security/faq
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    Package        : strongswan
    CVE ID         : CVE-2017-9022 CVE-2017-9023
    
    Two denial of service vulnerabilities were identified in strongSwan, an
    IKE/IPsec suite, using Google's OSS-Fuzz fuzzing project.
    
    CVE-2017-9022
    
        RSA public keys passed to the gmp plugin aren't validated sufficiently
        before attempting signature verification, so that invalid input might
        lead to a floating point exception and crash of the process.
        A certificate with an appropriately prepared public key sent by a peer
        could be used for a denial-of-service attack.
    
    CVE-2017-9023
    
        ASN.1 CHOICE types are not correctly handled by the ASN.1 parser when
        parsing X.509 certificates with extensions that use such types. This could
        lead to infinite looping of the thread parsing a specifically crafted
        certificate.
    
    A fix for a build failure was additionally included in the 5.2.1-6+deb8u4
    revision of the strongSwan package.
    
    For the stable distribution (jessie), these problems have been fixed in
    version 5.2.1-6+deb8u3.
    
    For the upcoming stable distribution (stretch), these problems have been
    fixed in version 5.5.1-4
    
    For the unstable distribution (sid), these problems have been fixed in
    version 5.5.1-4.
    
    We recommend that you upgrade your strongswan 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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