CVE-2018-20712 Memory corruption in n/a
A heap-based buffer over-read in GNU libiberty allows attackers to cause a denial of service via crafted input to c++filt.
- 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-2018-20712?
CVE-2018-20712 is a medium-severity memory corruption vulnerability in Gnu Binutils, published on 15 Jan 2019. 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
A heap-based buffer over-read exists in the function d_expression_1 in cp-demangle.c in GNU libiberty, as distributed in GNU Binutils 2.31.1. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by c++filt.
Weakness: CWE-125
Which versions are affected by CVE-2018-20712?
It affects 1 product.
Products include Gnu Binutils.
How do I fix CVE-2018-20712?
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-2018-20712 being exploited?
There is no known exploitation of CVE-2018-20712 in the wild and no public exploit code.
Other vulnerabilities in Gnu Binutils
Sources
Also known as ALPINE-CVE-2018-20712, CLEANSTART-2025-QJ02692, DEBIAN-CVE-2018-20712, ECHO-0160-9330-67cd, GHSA-cgr8-f44r-j4r5, ROOT-OS-DEBIAN-12-CVE-2018-20712 and 1 more.