USN-3771-1: strongSwan vulnerabilities

Releases

• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• 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)

Update instructions

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

Ubuntu 18.04

• libstrongswan - 5.6.2-1ubuntu2.2
• strongswan - 5.6.2-1ubuntu2.2

Ubuntu 16.04

• libstrongswan - 5.3.5-1ubuntu3.7
• strongswan - 5.3.5-1ubuntu3.7

Ubuntu 14.04

• 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

• CVE-2018-10811
• CVE-2018-16151
• CVE-2018-16152
• CVE-2018-5388