Vulnerability Details : CVE-2019-9813
Incorrect handling of __proto__ mutations may lead to type confusion in IonMonkey JIT code and can be leveraged for arbitrary memory read and write. This vulnerability affects Firefox < 66.0.1, Firefox ESR < 60.6.1, and Thunderbird < 60.6.1.
Products affected by CVE-2019-9813
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-9813
69.16%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 98 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-9813
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2019-9813
-
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-9813
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1538006
Access DeniedIssue Tracking;Permissions Required;Vendor Advisory
-
https://access.redhat.com/errata/RHSA-2019:0966
RHSA-2019:0966 - Security Advisory - Red Hat Customer Portal
-
https://access.redhat.com/errata/RHSA-2019:1144
RHSA-2019:1144 - Security Advisory - Red Hat Customer Portal
-
https://www.mozilla.org/security/advisories/mfsa2019-12/
Security vulnerabilities fixed in Thunderbird 60.6.1 — MozillaVendor Advisory
-
https://www.mozilla.org/security/advisories/mfsa2019-10/
Security vulnerabilities fixed in Firefox 60.6.1 — MozillaVendor Advisory
-
https://www.mozilla.org/security/advisories/mfsa2019-09/
Security vulnerabilities fixed in Firefox 66.0.1 — MozillaVendor Advisory
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