CVE-2020-23546 Denial of service in n/a
Attackers can cause a denial of service in IrfanView by tricking users into opening a crafted XBM image 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
- None listed
What is CVE-2020-23546?
CVE-2020-23546 is a high-severity denial of service vulnerability in Irfanview Irfanview, published on 28 Oct 2021. 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
IrfanView 4.54 allows attackers to cause a denial of service or possibly other unspecified impacts via a crafted XBM file, related to a "Data from Faulting Address is used as one or more arguments in a subsequent Function Call starting at FORMATS!ReadMosaic+0x0000000000000981.
Which versions are affected by CVE-2020-23546?
It affects 1 product.
Products include Irfanview Irfanview.
How do I fix CVE-2020-23546?
No fix has been published for CVE-2020-23546 yet. Limit exposure of the affected software until one is available.
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-2020-23546 being exploited?
There is no known exploitation of CVE-2020-23546 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Irfanview Irfanview
Sources
Also known as GHSA-4pxr-prw4-mcfr.