CVE-2016-2366 Denial of service in Pidgin

What is CVE-2016-2366?

CVE-2016-2366 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 6 Jan 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A denial of service vulnerability exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent via the server could potentially result in an out-of-bounds read. A malicious server or an attacker who intercepts the network traffic can send invalid data to trigger this vulnerability and cause a crash.

Weakness: CWE-125

Which versions are affected by CVE-2016-2366?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Pidgin Pidgin.

How do I fix CVE-2016-2366?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2016-2366 being exploited?

There is no known exploitation of CVE-2016-2366 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2016-2366, GHSA-g3jh-xchp-c6qc, UBUNTU-CVE-2016-2366.