1. Ubuntu Security Notices
  2. USN-3317-1

USN-3317-1: Irssi vulnerabilities

Publication date

12 June 2017

Overview

Irssi could be made to crash if it received specially crafted network traffic.

Releases

Packages

  • irssi - terminal based IRC client

Details

It was discovered that Irssi incorrectly handled certain DCC messages. A
malicious IRC server could use this issue to cause Irssi to crash,
resulting in a denial of service. (CVE-2017-9468)

Joseph Bisch discovered that Irssi incorrectly handled receiving
incorrectly quoted DCC files. A remote attacker could possibly use this
issue to cause Irssi to crash, resulting in a denial of service.
(CVE-2017-9469)

It was discovered that Irssi incorrectly handled certain DCC messages. A
malicious IRC server could use this issue to cause Irssi to crash,
resulting in a denial of service. (CVE-2017-9468)

Joseph Bisch discovered that Irssi incorrectly handled receiving
incorrectly quoted DCC files. A remote attacker could possibly use this
issue to cause Irssi to crash, resulting in a denial of service.
(CVE-2017-9469)

Update instructions

After a standard system update you need to restart Irssi to make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
17.04 zesty irssi –  0.8.20-2ubuntu2.1
16.10 yakkety irssi –  0.8.19-1ubuntu2.2
16.04 xenial irssi –  0.8.19-1ubuntu1.4
14.04 trusty irssi –  0.8.15-5ubuntu3.2

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References

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