CVE-2021-23968

medium

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.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1687342

https://www.mozilla.org/security/advisories/mfsa2021-08/

https://www.mozilla.org/security/advisories/mfsa2021-09/

https://www.mozilla.org/security/advisories/mfsa2021-07/

https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html

https://www.debian.org/security/2021/dsa-4866

https://security.gentoo.org/glsa/202104-09

https://security.gentoo.org/glsa/202104-10

Details

Source: MITRE

Published: 2021-02-26

Updated: 2021-05-01

Type: CWE-209

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 4.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Impact Score: 1.4

Exploitability Score: 2.8

Severity: MEDIUM