CVE-2021-32256 Memory corruption in n/a
A stack overflow in GNU libiberty's Rust demangler allows attackers to cause denial of service or potentially execute code via crafted input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-32256?
CVE-2021-32256 is a medium-severity memory corruption vulnerability in Gnu Binutils, published on 18 Jul 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An issue was discovered in GNU libiberty, as distributed in GNU Binutils 2.36. It is a stack-overflow issue in demangle_type in rust-demangle.c.
Weakness: CWE-787
Which versions are affected by CVE-2021-32256?
It affects 1 product.
Products include Gnu Binutils.
How do I fix CVE-2021-32256?
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-2021-32256 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-32256 exists.
Other vulnerabilities in Gnu Binutils
Sources
Also known as AZL-27632, AZL-27633, DEBIAN-CVE-2021-32256, ECHO-0878-dc78-521e, GHSA-rqxx-65jr-rfpc, UBUNTU-CVE-2021-32256.