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Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : Libgcrypt vulnerability (USN-3689-1)

medium Nessus Plugin ID 110623

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-3689-1 advisory.

 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.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-3689-1

Plugin Details

Severity: Medium

ID: 110623

File Name: ubuntu_USN-3689-1.nasl

Version: 1.12

Type: local

Agent: unix

Published: 6/20/2018

Updated: 8/27/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 1.9

Temporal Score: 1.5

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

CVSS Score Source: CVE-2018-0495

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.2

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libgcrypt20-udeb, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libgcrypt11, p-cpe:/a:canonical:ubuntu_linux:libgcrypt11-dev, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libgcrypt20, p-cpe:/a:canonical:ubuntu_linux:libgcrypt11-udeb, p-cpe:/a:canonical:ubuntu_linux:libgcrypt-mingw-w64-dev, p-cpe:/a:canonical:ubuntu_linux:libgcrypt20-dev

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/19/2018

Vulnerability Publication Date: 6/13/2018

Reference Information

CVE: CVE-2018-0495

IAVA: 2018-A-0203

USN: 3689-1