Ubuntu 14.04 LTS / 16.04 LTS / 17.10 / 18.04 LTS : libgcrypt11, libgcrypt20 vulnerability (USN-3689-1)
High Nessus Plugin ID 110623
SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionKeegan Ryan discovered that Libgcrypt was susceptible to a side-channel attack. A local attacker could possibly use this attack to recover ECDSA 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 libgcrypt11 and / or libgcrypt20 packages.