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Ubuntu: USN-3771-1 Critical: strongSwan DoS Threats Resolved

ubuntu
Calendar Grey September 25, 2018
Dist Ubuntu Esm H88
Addressing vulnerabilities in strongSwan on Ubuntu. Make sure to upgrade your system for safeguarding against the latest risks.
Several security issues were fixed in strongSwan.

Summary

Several security issues were fixed in strongSwan.

Software Description:

- strongswan: IPsec VPN solution

Details:

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)

Topics%20covered

Topics Covered

security advisory denial of service software patch remote access ubuntu strongswan

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
  libstrongswan                   5.6.2-1ubuntu2.2
  strongswan                      5.6.2-1ubuntu2.2

Ubuntu 16.04 LTS:
  libstrongswan                   5.3.5-1ubuntu3.7
  strongswan                      5.3.5-1ubuntu3.7

Ubuntu 14.04 LTS:
  libstrongswan                   5.1.2-0ubuntu2.10
  strongswan                      5.1.2-0ubuntu2.10

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-3771-1

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

Severity
critical
Lowest
Low
Medium
High
Critical

September 25, 2018

Topics%20covered

Topics Covered

security advisory denial of service software patch remote access ubuntu strongswan

Package Information

https://launchpad.net/ubuntu/+source/strongswan/5.6.2-1ubuntu2.2
https://launchpad.net/ubuntu/+source/strongswan/5.3.5-1ubuntu3.7
https://launchpad.net/ubuntu/+source/strongswan/5.1.2-0ubuntu2.10

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