SeaCat Technology and the Latest OpenSSL Update (1.1.0d, 1.0.2k)

Thursday, January 26, 2017

OpenSSL released a new version on 26 January 2017. The new release fixed one low-severity issue and three moderate ones:

  • Truncated packet could crash via OOB read (CVE-2017-3731)
  • Bad (EC)DHE parameters cause a client crash (CVE-2017-3730)
  • BN_mod_exp may produce incorrect results on x86_64 (CVE-2017-3732)
  • Montgomery multiplication may produce incorrect results (CVE-2016-7055)

Except for the (EC)DHE parameter-related issue, all mentioned issues relates to functionalities that are never used by SeaCat technology. An attack based CVE-2017-3730 affects only the client side of the communication. A successful attack results in a client crash during the beginning of a negotiation process. Attackers have to have the data communication under control to be able to send specially crafted packets.

Recommendation:

We recommend you to update to the latest version of SeaCat client. If you have any question, please contact support@teskalabs.com. Alternatively, look at our documentation to know more about SeaCat application security technology.




You Might Be Interested in Reading These Articles

SeaCat Application Security Technology Is Not Impacted by the Dirty Cow Issue (CVE-2016-5195)

The new vulnerability, DirtyCOW, (CVE-2016-5195) exploits a flaw in private read-only memory mappings. However, this critical impact vulnerability has existed in Linux for nine years and only got discovered recently.

Continue reading ...

bulletin

Published on October 25, 2016

SeaCat Application Security Technology Is Not Impacted by the SWEET32 Issue (CVE-2016-2183)

The new vulnerability CVE-2016-2183 affects the 3DES block cipher in TLS and OpenVPN software. During an attack, attackers need to find a collision of block cipher initialization vector used at the beginning of the encrypted data stream and decrypt the traffic between the victim and the server.

Continue reading ...

bulletin

Published on August 26, 2016

OpenSSL DROWN Vulnerability Affects Millions of HTTPS Websites and Software Supporting SSLv2 (CVE-2016-0800)

DROWN is caused by legacy OpenSSL SSLv2 protocol, known to have many deficiencies. Security experts have recommended to turn it off, but apparently many servers still support it because disabling SSLv2 requires non-default reconfiguration of the SSL cryptographic settings which is not easy for common IT people who have limited security knowledge and don’t know the location to disable this protocol and the way to disable it.

Continue reading ...

security bulletin blog

Published on April 12, 2016