CVE-2022-27943 Denial of service in n/a
Stack consumption in GNU GCC's libiberty demangle_const function allows attackers to cause a denial of service via crafted input.
- 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-2022-27943?
CVE-2022-27943 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 26 Mar 2022. 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
libiberty/rust-demangle.c in GNU GCC 11.2 allows stack consumption in demangle_const, as demonstrated by nm-new.
Weakness: CWE-674
Which versions are affected by CVE-2022-27943?
It affects 2 products.
Products include Fedoraproject Fedora, Gnu Gcc.
How do I fix CVE-2022-27943?
Apply the vendor's patch.
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-2022-27943 being exploited?
There is no known exploitation of CVE-2022-27943 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as DEBIAN-CVE-2022-27943, ECHO-add2-f330-11fd, GHSA-xcrq-6rjw-5chw, OESA-2026-2089, ROOT-OS-UBUNTU-2204-CVE-2022-27943, UBUNTU-CVE-2022-27943.