USN-4565-1: OpenConnect vulnerability

Releases

• Ubuntu 18.04 ESM

Packages

• 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

• libopenconnect5 - 7.08-3ubuntu0.18.04.2
• openconnect - 7.08-3ubuntu0.18.04.2

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

References

• CVE-2019-16239