SB2021110218 - Security restrictions bypass in Rust Unicode implementation
Published: November 2, 2021 Updated: September 18, 2023
Security Bulletin ID
SB2021110218
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2021-42694)
The vulnerability allows an attacker to bypass certain security checks.
The vulnerability exists in the character definitions of the Unicode Specification. The specification allows an attacker to produce source code identifiers such as function names using homoglyphs that render visually identical to a target identifier. Adversaries can leverage this to inject code via adversarial identifier definitions in upstream software dependencies invoked deceptively in downstream software.
Remediation
Install update from vendor's website.