CVE-2021-29972
Last modified
CVE-2021-29972 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A use-after-free vulnerability was found via testing, and traced to an out-of-date Cairo library. Updating the library resolved the issue, and may have remediated other, unknown security vulnerabilities as well. EPSS estimates a 1.05% chance of exploitation in the next 30 days.
Description
A use-after-free vulnerability was found via testing, and traced to an out-of-date Cairo library. Updating the library resolved the issue, and may have remediated other, unknown security vulnerabilities as well. This vulnerability affects Firefox < 90.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 90.0 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1696816Exploit, Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/202202-03Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-28/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1696816Exploit, Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/202202-03Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2021-28/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-29972?
How severe is CVE-2021-29972?
How do I fix CVE-2021-29972?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-29966Mozilla developers reported memory safety bugs present in Fi…8.8
- CVE-2021-29967Mozilla developers reported memory safety bugs present in Fi…8.8
- CVE-2021-29968When drawing text onto a canvas with WebRender disabled, an …8.1
- CVE-2021-29969If Thunderbird was configured to use STARTTLS for an IMAP co…5.9
- CVE-2021-29970A malicious webpage could have triggered a use-after-free, m…8.8
- CVE-2021-29971If a user had granted a permission to a webpage and saved th…9.8
- CVE-2021-29973Password autofill was enabled without user interaction on in…8.8
- CVE-2021-29974When network partitioning was enabled, e.g. as a result of E…4.3
- CVE-2021-29975Through a series of DOM manipulations, a message, over which…6.5
- CVE-2021-29976Mozilla developers reported memory safety bugs present in co…8.8
- CVE-2021-29977Mozilla developers reported memory safety bugs present in Fi…8.8
- CVE-2021-29978Multiple low security issues were discovered and fixed in a …9.8
Are you affected by CVE-2021-29972?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
