USN-3590-1: Irssi vulnerabilities

irssi vulnerabilities

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

Ubuntu 17.10
Ubuntu 16.04 LTS
Ubuntu 14.04 LTS

Summary

Several security issues were fixed in Irssi.

Software Description

irssi – terminal based IRC client

Details

It was discovered that Irssi incorrectly handled certain empty
nick names. An attacker could possibly use this issue to cause a denial
of service. (CVE-2018-7050)

It was discovered that Irssi incorrectly handled certain nick names.
An attacker could possibly use this to access sensitive information.
(CVE-2018-7051)

It was discovered that Irssi incorrectly handled an increase in the
number of windows. An attacker could possibly use this issue to cause
a denial of service. (CVE-2018-7052)

It was discovered that Irssi incorrectly handled certain messages.
An attacker could possibly use this issue to cause a denial of service
or execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and
Ubuntu 17.10. (CVE-2018-7053)

It was discovered that Irssi incorrectly handled certain disconnections.
An attacker could possibly use this to cause a denial of service or
execute arbitrary code. This issue only affected Ubuntu 17.10. (CVE-2018-7054)

Update instructions

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

Ubuntu 17.10: irssi – 1.0.4-1ubuntu2.3
Ubuntu 16.04 LTS: irssi – 0.8.19-1ubuntu1.7
Ubuntu 14.04 LTS: irssi – 0.8.15-5ubuntu3.5

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

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

References

Source: USN-3590-1: Irssi vulnerabilities

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