Debian: DSA-3293-1: pyjwt security update

    Date 20 Jun 2015
    195
    Posted By LinuxSecurity Advisories
    Tim McLean discovered that pyjwt, a Python implementation of JSON Web Token, would try to verify an HMAC signature using an RSA or ECDSA public key as secret. This could allow remote attackers to trick applications expecting tokens signed with asymmetric keys, into accepting arbitrary
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-3293-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                       Alessandro Ghedini
    June 20, 2015                         https://www.debian.org/security/faq
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    Package        : pyjwt
    Debian Bug     : 781640
    
    Tim McLean discovered that pyjwt, a Python implementation of JSON Web
    Token, would try to verify an HMAC signature using an RSA or ECDSA public
    key as secret. This could allow remote attackers to trick applications
    expecting tokens signed with asymmetric keys, into accepting arbitrary
    tokens. For more information see:
    https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/
    
    For the stable distribution (jessie), this problem has been fixed in
    version 0.2.1-1+deb8u1.
    
    For the unstable distribution (sid), this problem will be fixed soon.
    
    We recommend that you upgrade your pyjwt 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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