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Rewterz Threat Alert – Waterbug Resurfaces with New Tool Kit
June 25, 2019
Rewterz Threat Advisory – CVE-2019-1878 – Cisco TelePresence Endpoint Command Shell Injection Vulnerability
June 26, 2019

Rewterz Threat Alert – OpenSSH Now Encrypts Secret Keys in Memory Against Side-Channel Attacks

June 25, 2019

Severity

Medium

Analysis Summary


Add protection for private keys at rest in RAM against speculation
and memory sidechannel attacks like Spectre, Meltdown, Rowhammer and
Rambleed. This change encrypts private keys when they are not in use
with a symmetic key that is derived from a relatively large “prekey”
consisting of random data (currently 16KB).

Impact

Side-Channel Attacks

Affected Vendors

OpenSSH

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