CVE-2019-12295 Denial of service in n/a

High 7.5 Published Updated

An attacker can cause a denial of service in Wireshark by triggering a crash in the dissection engine through excessive recursion.

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

What is CVE-2019-12295?

CVE-2019-12295 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 23 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Wireshark 3.0.0 to 3.0.1, 2.6.0 to 2.6.8, and 2.4.0 to 2.4.14, the dissection engine could crash. This was addressed in epan/packet.c by restricting the number of layers and consequently limiting recursion.

Weakness: CWE-674

Which versions are affected by CVE-2019-12295?

It affects 16 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager and 10 more.

How do I fix CVE-2019-12295?

Upgrade to a fixed version.

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-2019-12295 being exploited?

There is no known exploitation of CVE-2019-12295 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-12295, GHSA-6c7j-gh7x-rw3h, OESA-2021-1285, UBUNTU-CVE-2019-12295.

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