[USN-5250-1] strongSwan vulnerability
Marc Deslauriers
marc.deslauriers at canonical.com
Mon Jan 24 18:53:55 UTC 2022
==========================================================================
Ubuntu Security Notice USN-5250-1
January 24, 2022
strongswan vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
Summary:
strongSwan could crash or allow unintended access to network services.
Software Description:
- strongswan: IPsec VPN solution
Details:
Zhuowei Zhang discovered that stringSwan incorrectly handled EAP
authentication. A remote attacker could use this issue to cause strongSwan
to crash, resulting in a denial of service, or possibly bypass client and
server authentication.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 21.10:
libstrongswan 5.9.1-1ubuntu3.2
strongswan 5.9.1-1ubuntu3.2
Ubuntu 20.04 LTS:
libstrongswan 5.8.2-1ubuntu3.4
strongswan 5.8.2-1ubuntu3.4
Ubuntu 18.04 LTS:
libstrongswan 5.6.2-1ubuntu2.8
strongswan 5.6.2-1ubuntu2.8
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5250-1
CVE-2021-45079
Package Information:
https://launchpad.net/ubuntu/+source/strongswan/5.9.1-1ubuntu3.2
https://launchpad.net/ubuntu/+source/strongswan/5.8.2-1ubuntu3.4
https://launchpad.net/ubuntu/+source/strongswan/5.6.2-1ubuntu2.8
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