CVE-2023-4512 Uncontrolled Recursion in Wireshark
Attackers can cause Wireshark to crash via crafted packets or files due to uncontrolled recursion in the CBOR dissector.
- 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-2023-4512?
CVE-2023-4512 is a medium-severity denial of service vulnerability in Wireshark Wireshark, published on 24 Aug 2023. 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
CBOR dissector crash in Wireshark 4.0.0 to 4.0.6 allows denial of service via packet injection or crafted capture file
Weakness: CWE-674
Which versions are affected by CVE-2023-4512?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2023-4512?
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-2023-4512 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4512 exists.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as DEBIAN-CVE-2023-4512, GHSA-g65w-25m5-5gcg.