Vulnerability Details : CVE-2022-22747
After accepting an untrusted certificate, handling an empty pkcs7 sequence as part of the certificate data could have lead to a crash. This crash is believed to be unexploitable. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.
Exploit prediction scoring system (EPSS) score for CVE-2022-22747
Probability of exploitation activity in the next 30 days: 0.10%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 40 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2022-22747
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2022-22747
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The product does not validate, or incorrectly validates, a certificate.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-22747
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https://www.mozilla.org/security/advisories/mfsa2022-01/
Security Vulnerabilities fixed in Firefox 96 — MozillaVendor Advisory
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https://bugzilla.mozilla.org/show_bug.cgi?id=1735028
1735028 - (CVE-2022-22747) CERT_DecodeCertPackage() crash with empty pkcs7 sequenceIssue Tracking;Vendor Advisory
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https://www.mozilla.org/security/advisories/mfsa2022-02/
Security Vulnerabilities fixed in Firefox ESR 91.5 — MozillaVendor Advisory
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https://www.mozilla.org/security/advisories/mfsa2022-03/
Security Vulnerabilities fixed in Thunderbird 91.5 — MozillaVendor Advisory
Products affected by CVE-2022-22747
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*