Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : strongswan vulnerabilities (USN-3771-1)

Medium Nessus Plugin ID 117805

Synopsis

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

Description

It was discovered that strongSwan incorrectly handled IKEv2 key derivation. A remote attacker could possibly use this issue to cause strongSwan to crash, resulting in a denial of service.
(CVE-2018-10811)

Sze Yiu Chau discovered that strongSwan incorrectly handled parsing OIDs in the gmp plugin. A remote attacker could possibly use this issue to bypass authorization. (CVE-2018-16151)

Sze Yiu Chau discovered that strongSwan incorrectly handled certain parameters fields in the gmp plugin. A remote attacker could possibly use this issue to bypass authorization. (CVE-2018-16152)

It was discovered that strongSwan incorrectly handled the stroke plugin. A local administrator could use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2018-5388).

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.

Plugin Details

Severity: Medium

ID: 117805

File Name: ubuntu_USN-3771-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2018/09/27

Modified: 2018/09/27

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5

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

CVSSv3

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: 2018/09/25

Reference Information

CVE: CVE-2018-10811, CVE-2018-16151, CVE-2018-16152, CVE-2018-5388

USN: 3771-1