==========================================================================
Ubuntu Security Notice USN-3771-1
September 25, 2018
strongswan vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS
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)
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://usn.ubuntu.com/usn/usn-3771-1
CVE-2018-10811, CVE-2018-16151, CVE-2018-16152, CVE-2018-5388
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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