CVE-2024-32040 FreeRDP vulnerable to integer underflow in nsc_rle_decode

What is CVE-2024-32040?

CVE-2024-32040 is a high-severity vulnerability in Fedoraproject Fedora, published on 22 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

FreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients that use a version of FreeRDP prior to 3.5.0 or 2.11.6 and have connections to servers using the `NSC` codec are vulnerable to integer underflow. Versions 3.5.0 and 2.11.6 patch the issue. As a workaround, do not use the NSC codec (e.g. use `-nsc`).

Weakness: CWE-191

Which versions are affected by CVE-2024-32040?

It affects 2 products.

Products include Fedoraproject Fedora, Freerdp Freerdp.

How do I fix CVE-2024-32040?

Upgrade to a fixed version.

Is CVE-2024-32040 being exploited?

There is no known exploitation of CVE-2024-32040 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-2024-32040, GHSA-23c5-cp23-h2h5, UBUNTU-CVE-2024-32040.