CVE-2018-20198 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 a crafted audio file.

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-2018-20198?

CVE-2018-20198 is a medium-severity vulnerability in n/a, 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 LONG_START_SEQUENCE case.

Weakness: CWE-476

Which versions are affected by CVE-2018-20198?

It affects 1 product.

Products include Audiocoding Freeware Advanced Audio Decoder 2.

How do I fix CVE-2018-20198?

Apply the vendor's patch.

Is CVE-2018-20198 being exploited?

There is no known exploitation of CVE-2018-20198 in the wild and no public exploit code.

Sources

Also known as ALPINE-CVE-2018-20198, CLEANSTART-2023-OJ89362, DEBIAN-CVE-2018-20198, GHSA-xrvj-fcp5-3rm2, UBUNTU-CVE-2018-20198.