CVE-2020-21490 Denial of service in n/a
A memory leak in GNU Binutils when disassembling MicroBlaze instructions can lead to resource exhaustion and denial of service.
- 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-2020-21490?
CVE-2020-21490 is a medium-severity denial of service vulnerability in Gnu Binutils, published on 22 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
An issue was discovered in GNU Binutils 2.34. It is a memory leak when process microblaze-dis.c. This one will consume memory on each insn disassembled.
Weakness: CWE-401
Which versions are affected by CVE-2020-21490?
It affects 1 product.
Products include Gnu Binutils.
How do I fix CVE-2020-21490?
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-2020-21490 being exploited?
There is no known exploitation of CVE-2020-21490 in the wild and no public exploit code.
Other vulnerabilities in Gnu Binutils
Sources
Also known as DEBIAN-CVE-2020-21490, GHSA-qgjh-xmjv-7xqp, UBUNTU-CVE-2020-21490.