CVE-2024-23809 Use after free in libbiosig

What is CVE-2024-23809?

CVE-2024-23809 is a critical use after free vulnerability in Fedoraproject Fedora, published on 20 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A double-free vulnerability exists in the BrainVision ASCII Header Parsing functionality of The Biosig Project libbiosig 2.5.0 and Master Branch (ab0ee111). A specially crafted .vdhr file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

Weakness: CWE-415

Which versions are affected by CVE-2024-23809?

It affects 2 products.

Products include Fedoraproject Fedora, Libbiosig Project Libbiosig.

How do I fix CVE-2024-23809?

Apply the vendor's patch.

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-2024-23809 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-23809 exists.

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-2024-23809, GHSA-v8rx-gg8c-mc3c, UBUNTU-CVE-2024-23809.