CVE-2021-38508

Summary

By displaying a form validity message in the correct location at the same time as a permission prompt (such as for geolocation), the validity message could have obscured the prompt, resulting in the user potentially being tricked into granting the permission. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Affected Software

Weaknesses

• Permission Prompt could be overlaid, resulting in user confusion and potential spoofing

ADP Enrichment

CVE Program Container

Additional References

• https://www.mozilla.org/security/advisories/mfsa2021-49/
• https://www.mozilla.org/security/advisories/mfsa2021-50/
• https://www.mozilla.org/security/advisories/mfsa2021-48/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1366818
• https://www.debian.org/security/2021/dsa-5026
• https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html
• https://www.debian.org/security/2022/dsa-5034
• https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
• https://security.gentoo.org/glsa/202202-03
• https://security.gentoo.org/glsa/202208-14

References

• https://www.mozilla.org/security/advisories/mfsa2021-49/
• https://www.mozilla.org/security/advisories/mfsa2021-50/
• https://www.mozilla.org/security/advisories/mfsa2021-48/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1366818
• https://www.debian.org/security/2021/dsa-5026
• https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html
• https://www.debian.org/security/2022/dsa-5034
• https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html
• https://security.gentoo.org/glsa/202202-03
• https://security.gentoo.org/glsa/202208-14

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