Home / mailings [USN-3301-1] strongSwan vulnerabilities
Posted on 30 May 2017
Ubuntu Security==========================
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Ubuntu Security Notice USN-3301-1
May 30, 2017
strongswan vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
strongSwan could be made to crash or hang if it received specially crafte=
d
network traffic.
Software Description:
- strongswan: IPsec VPN solution
Details:
It was discovered that the strongSwan gmp plugin incorrectly validated RS=
A
public keys. A remote attacker could use this issue to cause strongSwan t=
o
crash, resulting in a denial of service. (CVE-2017-9022)
It was discovered that strongSwan incorrectly parsed ASN.1 CHOICE types. =
A
remote attacker could use this issue to cause strongSwan to hang, resulti=
ng
in a denial of service. (CVE-2017-9023)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.04:
libstrongswan 5.5.1-1ubuntu3.1
strongswan 5.5.1-1ubuntu3.1
Ubuntu 16.10:
libstrongswan 5.3.5-1ubuntu4.3
strongswan 5.3.5-1ubuntu4.3
strongswan-plugin-gmp 5.3.5-1ubuntu4.3
Ubuntu 16.04 LTS:
libstrongswan 5.3.5-1ubuntu3.3
strongswan 5.3.5-1ubuntu3.3
strongswan-plugin-gmp 5.3.5-1ubuntu3.3
Ubuntu 14.04 LTS:
libstrongswan 5.1.2-0ubuntu2.6
strongswan 5.1.2-0ubuntu2.6
strongswan-plugin-gmp 5.1.2-0ubuntu2.6
In general, a standard system update will make all the necessary changes.=
References:
https://www.ubuntu.com/usn/usn-3301-1
CVE-2017-9022, CVE-2017-9023
Package Information:
https://launchpad.net/ubuntu/+source/strongswan/5.5.1-1ubuntu3.1
https://launchpad.net/ubuntu/+source/strongswan/5.3.5-1ubuntu4.3
https://launchpad.net/ubuntu/+source/strongswan/5.3.5-1ubuntu3.3
https://launchpad.net/ubuntu/+source/strongswan/5.1.2-0ubuntu2.6
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