CVE-2019-12295 Denial of service in n/a
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.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2019-12295, GHSA-6c7j-gh7x-rw3h, OESA-2021-1285, UBUNTU-CVE-2019-12295.