CVE-2020-36331 Information disclosure in libwebp
An out-of-bounds read in libwebp allows attackers to disclose sensitive information and cause service disruption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-36331?
CVE-2020-36331 is a critical vulnerability in Apple Ipados, published on 21 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw was found in libwebp in versions before 1.0.1. An out-of-bounds read was found in function ChunkAssignData. The highest threat from this vulnerability is to data confidentiality and to the service availability.
Weakness: CWE-125
Which versions are affected by CVE-2020-36331?
It affects 6 products.
Products include Apple Ipados, Apple Iphone Os, Debian Debian Linux, Netapp Ontap Select Deploy Administration Utility, Redhat Enterprise Linux, Webmproject Libwebp.
How do I fix CVE-2020-36331?
Upgrade to a fixed version.
Is CVE-2020-36331 being exploited?
There is no known exploitation of CVE-2020-36331 in the wild and no public exploit code.
Other vulnerabilities in Apple Ipados
- CVE-2025-43300 Apple iOS, iPadOS, and macOS Out-of-Bounds Write
- CVE-2025-24201 Apple Multiple Products WebKit Out-of-Bounds Write
- CVE-2025-24085 Apple Multiple Products Use-After-Free
- CVE-2025-31200 Apple Multiple Products Memory Corruption
- CVE-2025-31201 Apple Multiple Products Arbitrary Read and Write
Sources
Also known as DEBIAN-CVE-2020-36331, GHSA-hrq2-3wxg-w5m6, UBUNTU-CVE-2020-36331.