Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : strongswan vulnerability (USN-3774-1)

Medium Nessus Plugin ID 117868

Synopsis

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

Description

It was discovered that strongSwan incorrectly handled signature validation in the gmp plugin. A remote attacker could use this issue to cause strongSwan to crash, resulting in a denial of service, or possibly execute arbitrary code.

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 libstrongswan and / or strongswan packages.

See Also

https://usn.ubuntu.com/3774-1/

Plugin Details

Severity: Medium

ID: 117868

File Name: ubuntu_USN-3774-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2018/10/02

Modified: 2018/12/01

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

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

CVSS v3.0

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libstrongswan, p-cpe:/a:canonical:ubuntu_linux:strongswan, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04, 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: 2018/10/01

Reference Information

CVE: CVE-2018-17540

USN: 3774-1