CVE-2021-37519 Memory corruption in n/a
Attackers can cause a denial of service in memcached by providing a crafted authentication file, requiring specific configuration to exploit.
- 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-2021-37519?
CVE-2021-37519 is a medium-severity memory corruption vulnerability in n/a, published on 3 Feb 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
Buffer Overflow vulnerability in authfile.c memcached 1.6.9 allows attackers to cause a denial of service via crafted authenticattion file.
Weakness: CWE-787
Which versions are affected by CVE-2021-37519?
1 open source package ship an affected version, including memcached. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
memcached Bitnami | All versions | 1.6.10 |
Products include Memcached Memcached.
How do I fix CVE-2021-37519?
Upgrade memcached to 1.6.10 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-37519 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-37519 exists.
Other vulnerabilities in n/a
Sources
Also known as BIT-memcached-2021-37519, CLSA-2026-1779095842, DEBIAN-CVE-2021-37519, GHSA-5pff-p34f-mm94, UBUNTU-CVE-2021-37519.