CVE-2022-2580 in vim
Summary
by MITRE • 08/01/2022
Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.0102.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 08/29/2022
The heap-based buffer overflow vulnerability identified as CVE-2022-2580 affects the popular text editor vim version prior to 9.0.0102. This vulnerability resides within the GitHub repository vim/vim and represents a critical security flaw that could potentially allow remote code execution or system compromise. The vulnerability stems from improper memory management during buffer handling operations, specifically when processing certain input data that exceeds allocated heap memory boundaries.
This technical flaw manifests as a heap-based buffer overflow, which occurs when a program writes more data to a heap-allocated buffer than it can accommodate. The vulnerability is categorized under CWE-122, which describes insufficient checking of heap buffer bounds during heap allocation operations. The flaw allows attackers to overwrite adjacent heap memory locations, potentially leading to arbitrary code execution or denial of service conditions. Attackers could exploit this vulnerability by crafting malicious input that triggers the vulnerable code path during normal vim operation, particularly when processing specific file formats or command sequences.
The operational impact of this vulnerability extends beyond simple exploitation scenarios, as it affects the fundamental security posture of systems relying on vim for text editing operations. Organizations using affected vim versions face significant risk exposure, particularly in environments where users might process untrusted files or receive malicious input through vim's various input mechanisms. The vulnerability affects both local and remote attack scenarios, as the heap overflow could be triggered through file processing, command execution, or network-based input handling within vim's architecture. This creates a broad attack surface that could be leveraged by threat actors to establish persistent access or cause system instability.
Mitigation strategies for CVE-2022-2580 primarily focus on immediate patching and system hardening measures. Organizations should prioritize upgrading to vim version 9.0.0102 or later, which contains the necessary fixes for the heap buffer overflow vulnerability. Additionally, implementing runtime protections such as address space layout randomization and stack canaries can provide additional defense-in-depth measures. System administrators should also consider restricting vim's execution privileges and implementing input validation controls to minimize potential exploitation vectors. The vulnerability aligns with ATT&CK technique T1059.006 for command and scripting interpreter execution, as exploitation could occur through vim's command-line processing capabilities. Regular security assessments and vulnerability scanning should be implemented to identify systems running vulnerable versions of vim and ensure timely remediation across all affected environments.