CVE-2019-5719 Denial of service in n/a
A flaw in the ISAKMP dissector allows attackers to crash Wireshark by sending malformed packets, requiring users to update the software.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2019-5719?
CVE-2019-5719 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 8 Jan 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
In Wireshark 2.6.0 to 2.6.5 and 2.4.0 to 2.4.11, the ISAKMP dissector could crash. This was addressed in epan/dissectors/packet-isakmp.c by properly handling the case of a missing decryption data block.
Weakness: CWE-327
Which versions are affected by CVE-2019-5719?
It affects 2 products.
Products include Debian Debian Linux, Wireshark Wireshark.
How do I fix CVE-2019-5719?
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-2019-5719 being exploited?
There is no known exploitation of CVE-2019-5719 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2019-5719, GHSA-c4v7-p4hq-5262, UBUNTU-CVE-2019-5719.