CVE-2018-20197 Memory corruption in n/a

High 7.8 Published 18 Dec 2018 Updated 5 Aug 2024

A stack-based buffer underflow in FAAD2 allows attackers to cause denial of service or potentially execute code 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-2018-20197?

CVE-2018-20197 is a high-severity memory corruption 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

There is a stack-based buffer underflow in the third instance of the calculate_gain function in libfaad/sbr_hfadj.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. A crafted input will lead to a denial of service or possibly unspecified other impact because limiting the additional noise energy level is mishandled for the G_max > G case.

Weakness: CWE-787

Which versions are affected by CVE-2018-20197?

It affects 1 product.

Products include Audiocoding Freeware Advanced Audio Decoder 2.

How do I fix CVE-2018-20197?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-20197 being exploited?

There is no known exploitation of CVE-2018-20197 in the wild and no public exploit code.

Sources

Also known as ALPINE-CVE-2018-20197, CLEANSTART-2023-FC29404, DEBIAN-CVE-2018-20197, GHSA-4w78-j3c6-p6j6, UBUNTU-CVE-2018-20197.