CVE-2019-9820
Mozilla: Use-after-free of ChromeEventHandler by DocShell
Severity Score
9.8
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A use-after-free vulnerability can occur in the chrome event handler when it is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
Puede ocurrir una vulnerabilidad de uso de la memoria previamente liberada en el controlador de eventos de Chrome cuando se libera mientras aún está en uso. Esto resulta en un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Thunderbird anterior a versión 60.7, Firefox anterior a versión 67 y Firefox ESR anterior a versión 60.7.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-03-14 CVE Reserved
- 2019-05-21 CVE Published
- 2024-07-16 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
CAPEC
References (5)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.mozilla.org/security/advisories/mfsa2019-13 | 2019-07-26 | |
| https://www.mozilla.org/security/advisories/mfsa2019-14 | 2019-07-26 | |
| https://www.mozilla.org/security/advisories/mfsa2019-15 | 2019-07-26 | |
| https://access.redhat.com/security/cve/CVE-2019-9820 | 2019-06-03 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1712629 | 2019-06-03 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mozilla Search vendor "Mozilla" | Firefox Search vendor "Mozilla" for product "Firefox" | < 67.0 Search vendor "Mozilla" for product "Firefox" and version " < 67.0" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | < 60.7 Search vendor "Mozilla" for product "Firefox Esr" and version " < 60.7" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Thunderbird Search vendor "Mozilla" for product "Thunderbird" | < 60.7.0 Search vendor "Mozilla" for product "Thunderbird" and version " < 60.7.0" | - |
Affected
| ||||||