CVE-2020-26420 Denial of service in Wireshark
A memory leak in the RTPS dissector allows attackers to cause a denial of service via crafted packets or files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-26420?
CVE-2020-26420 is a low-severity denial of service vulnerability in Fedoraproject Fedora, published on 11 Dec 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Memory leak in RTPS protocol dissector in Wireshark 3.4.0 and 3.2.0 to 3.2.8 allows denial of service via packet injection or crafted capture file.
Weakness: CWE-401
Which versions are affected by CVE-2020-26420?
It affects 3 products.
Products include Fedoraproject Fedora, Oracle Zfs Storage Appliance Kit, Wireshark Wireshark.
How do I fix CVE-2020-26420?
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-2020-26420 being exploited?
There is no known exploitation of CVE-2020-26420 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as DEBIAN-CVE-2020-26420, GHSA-rvp4-jqj8-p5fq, UBUNTU-CVE-2020-26420.