CVE-2021-23968

Description

If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

Weakness classification

• CWE-209: Generation of Error Message Containing Sensitive Information

Primary references

• security@mozilla.org — Issue Tracking, Permissions Required, Vendor Advisory
• security@mozilla.org — Mailing List, Third Party Advisory
• security@mozilla.org — Third Party Advisory
• security@mozilla.org — Third Party Advisory
• security@mozilla.org — Third Party Advisory
• security@mozilla.org — Release Notes, Vendor Advisory
• security@mozilla.org — Release Notes, Vendor Advisory
• security@mozilla.org — Release Notes, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Permissions Required, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory