quassel vulnerabilities

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

* Ubuntu 18.04 LTS

Summary

Quassel could be made to crash or run programs if it received
specially crafted network traffic.

Software Description

* quassel - distributed IRC client - monolithic core+client

Details

It was discovered that Quassel incorrectly handled Qdatastream
protocol. A remote attacker could possibly use this issue to
execute arbitrary code. (CVE-2018-1000178)

It was discovered that Quassel incorrectly handled certain login
requests. A remote attacker could possibly use this issue to cause
a denial of service. (CVE-2018-1000179)

Update instructions

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

Ubuntu 18.04 LTS
quassel - 1:0.12.4-3ubuntu1.18.04.3
quassel-core - 1:0.12.4-3ubuntu1.18.04.3

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-2018-1000178
* CVE-2018-1000179

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