CVE-2021-30469 Use after free in podofo

What is CVE-2021-30469?

CVE-2021-30469 is a medium-severity use after free vulnerability in Fedoraproject Fedora, published on 26 May 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

A flaw was found in PoDoFo 0.9.7. An use-after-free in PoDoFo::PdfVecObjects::Clear() function can cause a denial of service via a crafted PDF file.

Weakness: CWE-416

Which versions are affected by CVE-2021-30469?

It affects 3 products.

Products include Fedoraproject Fedora, Podofo Project Podofo, Redhat Enterprise Linux.

How do I fix CVE-2021-30469?

No fix has been published for CVE-2021-30469 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2021-30469 being exploited?

There is no known exploitation of CVE-2021-30469 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 DEBIAN-CVE-2021-30469, GHSA-6955-6c83-2jr3, UBUNTU-CVE-2021-30469.