Ubuntu 14.04 LTS / 16.04 LTS / 17.10 / 18.04 LTS : libgcrypt11, libgcrypt20 vulnerability (USN-3689-1)

Low Nessus Plugin ID 110623

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

Keegan 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.

Solution

Update the affected libgcrypt11 and / or libgcrypt20 packages.

See Also

https://usn.ubuntu.com/3689-1/

Plugin Details

Severity: Low

ID: 110623

File Name: ubuntu_USN-3689-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 2018/06/20

Modified: 2018/12/01

Dependencies: 12634

Risk Information

Risk Factor: Low

CVSS v2.0

Base Score: 1.9

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:N

CVSS v3.0

Base Score: 4.7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libgcrypt11, p-cpe:/a:canonical:ubuntu_linux:libgcrypt20, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:17.10, cpe:/o:canonical:ubuntu_linux:18.04:-:lts

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Patch Publication Date: 2018/06/19

Reference Information

CVE: CVE-2018-0495

USN: 3689-1

IAVA: 2018-A-0203