CVE-2022-0318

Description

A flaw was found in vim. The vulnerability occurs due to reading beyond the end of a line in the utf_head_off function, which can lead to a heap buffer overflow. This flaw allows an attacker to input a specially crafted file, leading to a crash or code execution.

Mitigation

Untrusted vim scripts with -s [scriptin] are not recommended to run.

Common Vulnerability Scoring System (CVSS) Score Details

Info alert:Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v3 Score Breakdown

Red HatNVDcve.org
Base Score6.69.86.6
Attack VectorLocalNetworkLocal
Attack ComplexityLowLowLow
Privileges RequiredLowNoneLow
User InteractionNoneNoneNone
ScopeUnchangedUnchangedUnchanged
ConfidentialityLowHighLow
Integrity ImpactLowHighLow
Availability ImpactHighHighHigh

Vector

Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

cve.org: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

Understanding the Weakness (CWE)

CWE-787

Integrity

Technical Impact: Modify Memory; Execute Unauthorized Code or Commands

Write operations could cause memory corruption. In some cases, an adversary can modify control data such as return addresses in order to execute unexpected code.

Availability

Technical Impact: DoS: Crash, Exit, or Restart

Attempting to access out-of-range, invalid, or unauthorized memory could cause the product to crash.

Other

Technical Impact: Unexpected State

Subsequent write operations can produce undefined or unexpected results.

Frequently Asked Questions

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