Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2015.1605
pyjwt security update
22 June 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: pyjwt
Publisher: Debian
Operating System: Debian GNU/Linux 8
Linux variants
Impact/Access: Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
Original Bulletin:
http://www.debian.org/security/2015/dsa-3293
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running pyjwt check for an updated version of the software for their
operating system.
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Debian Security Advisory DSA-3293-1 security@debian.org
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: debian-security-announce@lists.debian.org
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