CVE-2023-1993 Denial of service in Wireshark
Attackers can cause denial of service in Wireshark via crafted packets or capture files due to a large loop in the LISP dissector.
- 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-2023-1993?
CVE-2023-1993 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 12 Apr 2023. 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
LISP dissector large loop in Wireshark 4.0.0 to 4.0.4 and 3.6.0 to 3.6.12 allows denial of service via packet injection or crafted capture file
Weakness: CWE-834
Which versions are affected by CVE-2023-1993?
It affects 3 products.
Products include Debian Debian Linux, Fedoraproject Fedora, Wireshark Wireshark.
How do I fix CVE-2023-1993?
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-2023-1993 being exploited?
There is no known exploitation of CVE-2023-1993 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2023-1993, GHSA-h4rg-h5cx-4r4w, UBUNTU-CVE-2023-1993.