SB2020121557 - Input validation error in firefox (Alpine package)
Published: December 15, 2020
Security Bulletin ID
SB2020121557
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2020-26973)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient validation of user-supplied input within CSS Sanitizer. A remote attacker can create a specially crafted web page, trick the victim into visiting it, and bypass implemented security restrictions.
Remediation
Install update from vendor's website.