CVE-2021-23169 Memory corruption in OpenEXR

What is CVE-2021-23169?

CVE-2021-23169 is a high-severity memory corruption vulnerability in Fedoraproject Fedora, published on 8 Jun 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

A heap-buffer overflow was found in the copyIntoFrameBuffer function of OpenEXR in versions before 3.0.1. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled against OpenEXR.

Weakness: CWE-787

Which versions are affected by CVE-2021-23169?

It affects 2 products.

Products include Fedoraproject Fedora, Openexr Openexr.

How do I fix CVE-2021-23169?

Upgrade to a fixed version.

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

Is CVE-2021-23169 being exploited?

There is no known exploitation of CVE-2021-23169 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 AZL-44256, DEBIAN-CVE-2021-23169, GHSA-f3pg-chcp-5ff8, UBUNTU-CVE-2021-23169.