CVE-2019-9796

Mozilla: Use-after-free with SMIL animation controller

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A use-after-free vulnerability can occur when the SMIL animation controller incorrectly registers with the refresh driver twice when only a single registration is expected. When a registration is later freed with the removal of the animation controller element, the refresh driver incorrectly leaves a dangling pointer to the driver's observer array. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

Una vulnerabilidad de uso después de liberación de memoria puede darse cuando el controlador de animación SMIL registra incorrectamente con el controlador de actualización dos veces cuando sólo se espera un único registro. Cuando se libera un registro con la eliminación del elemento de controlador de animación, el controlador de actualización deja incorrectamente un puntero pendiente en la matriz de observadores del controlador. Esta vulnerabilidad afecta a Thunderbird, versiones anteriores a 60.6, Firefox ESR, versiones anteriores a 60.6 y Firefox. versiones anteriores a 66.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-03-14 CVE Reserved
2019-03-20 CVE Published
2024-08-04 CVE Updated
2024-09-16 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (7)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2019:0966	2019-06-26
https://access.redhat.com/errata/RHSA-2019:1144	2019-06-26
https://www.mozilla.org/security/advisories/mfsa2019-07	2019-06-26
https://www.mozilla.org/security/advisories/mfsa2019-08	2019-06-26
https://www.mozilla.org/security/advisories/mfsa2019-11	2019-06-26
https://access.redhat.com/security/cve/CVE-2019-9796	2019-05-13
https://bugzilla.redhat.com/show_bug.cgi?id=1690681	2019-05-13

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"				< 66.0 Search vendor "Mozilla" for product "Firefox" and version " < 66.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				< 60.6.0 Search vendor "Mozilla" for product "Firefox Esr" and version " < 60.6.0"		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				< 60.6.0 Search vendor "Mozilla" for product "Thunderbird" and version " < 60.6.0"		-		Affected