SB2022110953 - Multiple vulnerabilities in Pale Moon
Published: November 9, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Security features bypass (CVE-ID: CVE-2022-40956)
CWE-ID: CWE-254 - Security Features
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 some requests may ignore the CSP's base-uri settings when handling HTML base element injection. A remote attacker can force the browser to accept the injected element's base instead of the original code, leading to Content Security Policy bypass.
2) Security features bypass (CVE-ID: CVE-2022-40958)
CWE-ID: CWE-254 - Security Features
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 incorrect handling of cookies. A remote attacker with access to a shared subdomain can inject a cookies with certain special characters, bypass Secure Context restriction for cookies with __Host and __Secure prefix and overwrite these cookies, potentially allowing session fixation attacks.
Remediation
Install update from vendor's website.