Cloud Vulnerability DB
A community-led vulnerabilities database
Vulnerability DatabaseCVE-2021-3236
CVE-2021-3236:
NixOS vulnerability analysis and mitigation
Overview
A null pointer dereference vulnerability was discovered in Vim version 8.2.2348, identified as CVE-2021-3236. The vulnerability exists in the ex_buffer_all method and allows local attackers to cause a denial of service (DoS) (NVD).
Technical details
The vulnerability occurs due to a lack of verification of wp->w_buffer in the ex_buffer_all function located in src/buffer.c. When accessing the buffer structure, the code attempts to dereference a null pointer, which leads to a segmentation fault (GitHub Issue).
Impact
The successful exploitation of this vulnerability results in a denial of service condition through application crash. The vulnerability has been assigned a CVSS score of 5.5 (MEDIUM) with the vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H (NetApp Security).
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