CVE-2020-16269 Denial of service in n/a

Medium 5.5 Published Updated

A malformed DWARF section in an executable causes a segmentation fault in radare2, leading to a 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-2020-16269?

CVE-2020-16269 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 3 Aug 2020. 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

radare2 4.5.0 misparses DWARF information in executable files, causing a segmentation fault in parse_typedef in type_dwarf.c via a malformed DW_AT_name in the .debug_info section.

Which versions are affected by CVE-2020-16269?

It affects 2 products.

Products include Fedoraproject Fedora, Radare Radare2.

How do I fix CVE-2020-16269?

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-2020-16269 being exploited?

There is no known exploitation of CVE-2020-16269 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as GHSA-32pf-q5pw-hg4f, UBUNTU-CVE-2020-16269.

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