CVE-2023-3649 Buffer Over-read in Wireshark
A buffer over-read in the iSCSI dissector allows attackers to cause a denial of service via crafted packets or capture files.
- 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-2023-3649?
CVE-2023-3649 is a medium-severity denial of service vulnerability in Wireshark Wireshark, published on 14 Jul 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
iSCSI dissector crash in Wireshark 4.0.0 to 4.0.6 allows denial of service via packet injection or crafted capture file
Which versions are affected by CVE-2023-3649?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2023-3649?
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-2023-3649 being exploited?
There is no known exploitation of CVE-2023-3649 in the wild and no public exploit code.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as DEBIAN-CVE-2023-3649, GHSA-cfcv-vwxf-fg7x, UBUNTU-CVE-2023-3649.