CVE-2020-18976 Memory corruption in n/a
Attackers can cause a denial of service in Tcpreplay by sending a crafted pcap file to the tcpreplay-edit binary.
- 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-2020-18976?
CVE-2020-18976 is a medium-severity memory corruption vulnerability in Broadcom Tcpreplay, published on 25 Aug 2021. 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
Buffer Overflow in Tcpreplay v4.3.2 allows attackers to cause a Denial of Service via the 'do_checksum' function in 'checksum.c'. It can be triggered by sending a crafted pcap file to the 'tcpreplay-edit' binary. This issue is different than CVE-2019-8381.
Weakness: CWE-120
Which versions are affected by CVE-2020-18976?
It affects 1 product.
Products include Broadcom Tcpreplay.
How do I fix CVE-2020-18976?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-18976 being exploited?
There is no known exploitation of CVE-2020-18976 in the wild and no public exploit code.
Other vulnerabilities in Broadcom Tcpreplay
Sources
Also known as DEBIAN-CVE-2020-18976, GHSA-v6p2-879w-fx47, UBUNTU-CVE-2020-18976.