Date: Thu, 11 Jun 2015 14:30:35 -0400 From: Nick Mathewson nickm@torproject.org

Hi, relay operators!

There have been a series of new openssl releases today: 0.9.8zg, 1.0.0s, 1.0.1n, and 1.0.2b.

They fix a set of security issues described in this announcement: https://www.openssl.org/news/secadv_20150611.txt

Since some of these issues could allow a remote denial-of-service attack, I would suggest that everybody should upgrade as OpenSSL packages become available for your operating systems. If you build OpenSSL from source, now's a good time to rebuild. You probably don't need to run in circles freaking out, or anything -- just upgrade when you can.

Also, if you can possibly avoid it, it would be a good idea to stop using the OpenSSL 0.9.8 series entirely. It's old and crufty and is missing many security improvements in later versions. OpenSSL 0.9.8 will not be supported in Tor 0.2.7.2-alpha or later.

Please also note that OpenSSL versions 0.9.8 and 1.0.0 are becoming unsupported at the end of 2015:

"As per our previous announcements and our Release Strategy (https://www.openssl.org/about/releasestrat.html), support for OpenSSL versions 1.0.0 and 0.9.8 will cease on 31st December 2015. No security updates for these releases will be provided after that date. Users of these releases are advised to upgrade."

See the second-last section in https://www.openssl.org/news/secadv_20150611.txt

teor

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