CVEvulnerability
CVE-2021-23968
4.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-02-26
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-209
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.
Affected configurations
• mozilla firefox (< 86.0)
• mozilla firefox esr (< 78.8)
• mozilla thunderbird (< 78.8)
• debian debian linux 9.0
• debian debian linux 10.0
Related
Weakness · CWE (1)
- CWE-209 Generation of Error Message Containing Sensitive Information weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1687342 Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202104-09 Third Party Advisory
- https://security.gentoo.org/glsa/202104-10 Third Party Advisory
- https://www.debian.org/security/2021/dsa-4866 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-07/ Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-08/ Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-09/ Release Notes, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1687342 Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202104-09 Third Party Advisory
- https://security.gentoo.org/glsa/202104-10 Third Party Advisory
- https://www.debian.org/security/2021/dsa-4866 Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-07/ Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-08/ Release Notes, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-09/ Release Notes, Vendor Advisory