CVE-2018-20199 Null dereference in n/a

Medium 5.5 Published 18 Dec 2018 Updated 5 Aug 2024

A NULL pointer dereference in FAAD2 allows attackers to cause a denial of service via crafted audio files.

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-2018-20199?

CVE-2018-20199 is a medium-severity vulnerability in Debian Debian Linux, published on 18 Dec 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

A NULL pointer dereference was discovered in ifilter_bank of libfaad/filtbank.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash, which leads to denial of service because adding to windowed output is mishandled in the ONLY_LONG_SEQUENCE case.

Weakness: CWE-476

Which versions are affected by CVE-2018-20199?

It affects 2 products.

Products include Audiocoding Freeware Advanced Audio Decoder 2, Debian Debian Linux.

How do I fix CVE-2018-20199?

Apply the vendor's patch.

Is CVE-2018-20199 being exploited?

There is no known exploitation of CVE-2018-20199 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as ALPINE-CVE-2018-20199, CLEANSTART-2023-DO62878, DEBIAN-CVE-2018-20199, GHSA-8fmv-4jcp-rv3m, UBUNTU-CVE-2018-20199.