openconnect vulnerability

A security issue affects these releases of Ubuntu and its
derivatives:

* Ubuntu 18.04 LTS

Summary

OpenConnect could be made to crash if it received specially
crafted input.

Software Description

* openconnect - An SSL VPN client

Details

It was discovered that OpenConnect has a buffer overflow when a
malicious server uses HTTP chunked encoding with crafted chunk
sizes. An attacker could use it to provoke a denial of service
(crash).

Update instructions

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

Ubuntu 18.04 LTS
libopenconnect5 - 7.08-3ubuntu0.18.04.2
openconnect - 7.08-3ubuntu0.18.04.2

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

* CVE-2019-16239

--- Mystic BBS v1.12 A46 (Linux/64)
* Origin: BZ&BZ BBS (21:4/110)