Cloud Vulnerability DB
A community-led vulnerabilities database
Vulnerability DatabaseCVE-2022-39316
CVE-2022-39316:
NixOS vulnerability analysis and mitigation
Overview
FreeRDP is a free remote desktop protocol library and clients. An out-of-bound read vulnerability (CVE-2022-39316) was discovered in the ZGFX decoder component of FreeRDP. The vulnerability affects versions prior to 2.9.0, which was released as a fix for this issue (GitHub Advisory, Debian Tracker).
Technical details
The vulnerability exists due to missing length checks in the ZGFX decoder component. The issue was addressed by adding missing length checks in the zgfxdecompresssegment function, as evidenced by the patch that includes additional validation for segment size and buffer boundaries (GitHub Commit).
Impact
A malicious server can exploit this vulnerability to cause FreeRDP-based clients to read out-of-bounds data and attempt to decode it, which would likely result in a crash of the client application (GitHub Advisory, Ubuntu Notice).
Mitigation and workarounds
The vulnerability has been fixed in FreeRDP version 2.9.0. Users are advised to upgrade to this version or later. Various distributions have also released security updates to address this vulnerability, including Ubuntu, Debian, and Fedora (Ubuntu Notice, Debian LTS).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
Free Vulnerability Assessment
Benchmark your Cloud Security Posture
Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.
Additional Wiz resources
Get a personalized demo
Ready to see Wiz in action?
"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management