CVE-2021-20205 Denial of service in Libjpeg-turbo

What is CVE-2021-20205?

CVE-2021-20205 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 10 Mar 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Libjpeg-turbo versions 2.0.91 and 2.0.90 is vulnerable to a denial of service vulnerability caused by a divide by zero when processing a crafted GIF image.

Weakness: CWE-369

Which versions are affected by CVE-2021-20205?

It affects 2 products.

Products include Fedoraproject Fedora, Libjpeg-Turbo Libjpeg-Turbo.

How do I fix CVE-2021-20205?

Upgrade to a fixed version.

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-2021-20205 being exploited?

There is no known exploitation of CVE-2021-20205 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2021-20205, CLEANSTART-2026-YE92089, GHSA-jxcf-352f-vj82.