CVE-2018-9996 Denial of service in n/a

Medium 5.5 Published 10 Apr 2018 Updated 5 Aug 2024

Stack exhaustion in GNU libiberty C++ demangling functions 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-2018-9996?

CVE-2018-9996 is a medium-severity denial of service vulnerability in Gnu Binutils, published on 10 Apr 2018. 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 cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.30. Stack Exhaustion occurs in the C++ demangling functions provided by libiberty, and there are recursive stack frames: demangle_template_value_parm, demangle_integral_value, and demangle_expression.

Weakness: CWE-674

Which versions are affected by CVE-2018-9996?

It affects 1 product.

Products include Gnu Binutils.

How do I fix CVE-2018-9996?

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-2018-9996 being exploited?

There is no known exploitation of CVE-2018-9996 in the wild and no public exploit code.

All Gnu Binutils vulnerabilities

Sources

Also known as DEBIAN-CVE-2018-9996, ECHO-536f-33fe-97ee, GHSA-g8cr-hg2h-9wfr, ROOT-OS-DEBIAN-12-CVE-2018-9996.