Yesterday, Zimbra released updates to Zimbra Collaboration, both the 8.0.x and 8.5.x trees. Security These updates address the OpenSSL security advisory dated October 15 and provide a partial fix for POODLE (due to the need for both client and server changes). Zimbra Collaboration 8.0.9 and 8.5.1 update the OpenSSL libraries for nginx, OpenLDAP and Postfix […]
Archive | Security & Privacy
POODLE and SSLv3
This week has brought about the latest security vulnerability. Google’s Thai Duong, Krzysztof Kotowicz, and Bodo Möller made the vulnerability — POODLE (Padding Oracle On Downgraded Legacy Encryption) — public on Tuesday, October 14, 2014. POODLE is a padding oracle attack affecting Secure Sockets Layer (SSL) version 3 and in particular, CBC-mode ciphers. This vulnerability […]
The Shellshock Flaw
***Security Alert*** [Update 2 | September 30, 2014, 9:10am CST] Apple has released at update. [Update 1 | September 26, 2014, 11:40am CST] Red Hat has released a full patch. [Original Post | September 25, 2014, 1:45pm CST] Zimbra is aware and has been closely monitoring the developments of the Shellshock vulnerability. At this time, […]
Forums.zimbra.com Incident and Resolution
On Sunday, August 31, Zimbra’s information security and technology team noticed unusual activity on the Zimbra vBulletin forum on Zimbra.com. We immediately took steps to limit the impact of the malicious activity. This did not affect customer, partner or employee data. This was not a breach of Zimbra products. Immediate action was taken to ensure […]
Microsoft Ruling a Setback to Data Privacy?
For any organization that relies on cloud-based email, there is an important legal decision that may affect your company’s data privacy. In the most recent round of judgment against Microsoft, there are noteworthy remarks from US District Judge Loretta Preska and lawyers for the US Justice Department. “It is a question of control, not a […]
Security Advisory on CCS Injection Vulnerability
On June 5, 2014 the OpenSSL project released a security advisory. CVE-2014-0224 can allow for a man-in-the-middle (MITM) attack to be carried out between a vulnerable client and vulnerable server. According to OpenSSL, an attacker using a carefully crafted handshake can force the use of weak keying material in OpenSSL SSL/TLS clients and servers. This can be exploited […]