CVE-2023-5371 Memory Allocation with Excessive Size Value in Wireshark
Attackers can cause denial of service in Wireshark via crafted packets or files due to excessive memory allocation in the RTPS 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-2023-5371?
CVE-2023-5371 is a medium-severity denial of service vulnerability in Wireshark Wireshark, published on 4 Oct 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
RTPS dissector memory leak in Wireshark 4.0.0 to 4.0.8 and 3.6.0 to 3.6.16 allows denial of service via packet injection or crafted capture file
Which versions are affected by CVE-2023-5371?
It affects 1 product.
Linux distribution packages (7)
wireshark SUSE:Linux Enterprise Module for Basesystem 15 SP4 | All versions | 3.6.17-150000.3.103.1 |
wireshark SUSE:Linux Enterprise Module for Basesystem 15 SP5 | All versions | 3.6.17-150000.3.103.1 |
wireshark SUSE:Linux Enterprise Module for Desktop Applications 15 SP4 | All versions | 3.6.17-150000.3.103.1 |
wireshark SUSE:Linux Enterprise Module for Desktop Applications 15 SP5 | All versions | 3.6.17-150000.3.103.1 |
wireshark SUSE:Manager Proxy 4.2 | All versions | 3.6.17-150000.3.103.1 |
wireshark SUSE:Manager Server 4.2 | All versions | 3.6.17-150000.3.103.1 |
wireshark openSUSE:Tumbleweed | All versions | 4.0.10-1.1 |
Products include Wireshark Wireshark.
How do I fix CVE-2023-5371?
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-2023-5371 being exploited?
There is no known exploitation of CVE-2023-5371 in the wild and no public exploit code.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as AZL-31120, AZL-37056, CLSA-2026-1786619933, CLSA-2026-1786718192, DEBIAN-CVE-2023-5371, GHSA-j7xf-pgw2-75mr and 3 more.