CVE-2020-6813

Name
CVE-2020-6813
Description
When protecting CSS blocks with the nonce feature of Content Security Policy, the @import statement in the CSS block could allow an attacker to inject arbitrary styles, bypassing the intent of the Content Security Policy. This vulnerability affects Firefox < 74.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Permissions Required https://bugzilla.mozilla.org/show_bug.cgi?id=1605814
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-08/

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* firefox >= None < 74.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
librewolf edge-community 74.0-r0 None fixed
librewolf 3.22-community 74.0-r0 None fixed
librewolf 3.21-community 74.0-r0 None fixed
firefox edge-community 74.0-r0 None fixed
firefox edge-community 71.0.1-r0 None possibly vulnerable
firefox edge-community 70.0-r0 None possibly vulnerable
firefox edge-community 68.0.2-r0 None possibly vulnerable
firefox 3.22-community 74.0-r0 None fixed
firefox 3.22-community 71.0.1-r0 None possibly vulnerable
firefox 3.22-community 70.0-r0 None possibly vulnerable
firefox 3.22-community 68.0.2-r0 None possibly vulnerable
firefox 3.21-community 74.0-r0 None fixed
firefox 3.20-community 74.0-r0 None fixed
firefox 3.19-community 74.0-r0 None fixed
firefox 3.18-community 74.0-r0 None fixed
firefox 3.17-community 74.0-r0 None fixed