Ubuntu 17.04 : libgcrypt20 vulnerability (USN-3417-1)
Medium Nessus Plugin ID 103250
SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionDaniel Genkin, Luke Valenta, and Yuval Yarom discovered that Libgcrypt was susceptible to an attack via side channels. A local attacker could use this attack to recover Curve25519 private keys.
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected libgcrypt20 package.