CVE-2022-26387
7.5
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox would not have noticed. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mozilla | Firefox | unspecified < 98 | affected |
| Mozilla | Firefox ESR | unspecified < 91.7 | affected |
| Mozilla | Thunderbird | unspecified < 91.7 | affected |
Weaknesses
- Time-of-check time-of-use bug when verifying add-on signatures
ADP Enrichment
CVE Program Container
Additional References
- https://www.mozilla.org/security/advisories/mfsa2022-12/
- https://www.mozilla.org/security/advisories/mfsa2022-10/
- https://www.mozilla.org/security/advisories/mfsa2022-11/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1752979
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://www.mozilla.org/security/advisories/mfsa2022-12/
- https://www.mozilla.org/security/advisories/mfsa2022-10/
- https://www.mozilla.org/security/advisories/mfsa2022-11/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1752979
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.