CVE-2017-7191 Use after free in n/a

Critical 9.8 Published 27 Mar 2017 Updated 5 Aug 2024

Attackers can trigger a use-after-free in Irssi's netjoin processing, causing denial of service or arbitrary code execution.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2017-7191?

CVE-2017-7191 is a critical use after free vulnerability in n/a, published on 27 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The netjoin processing in Irssi 1.x before 1.0.2 allows attackers to cause a denial of service (use-after-free) and possibly execute arbitrary code via unspecified vectors.

Weakness: CWE-416

Which versions are affected by CVE-2017-7191?

It affects 1 product.

Products include Irssi Irssi.

How do I fix CVE-2017-7191?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2017-7191 being exploited?

There is no known exploitation of CVE-2017-7191 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2017-7191, GHSA-2qj4-5xjm-32j8.