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.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.mozilla.org/security/advisories/mfsa2019-12/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-10/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-09/	Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1538006	Issue Tracking Permissions Required Vendor Advisory
https://access.redhat.com/errata/RHSA-2019:0966
https://access.redhat.com/errata/RHSA-2019:1144

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:thunderbird::::::::
	cpe:2.3:a:mozilla:firefox::::::::
	cpe:2.3:a:mozilla:firefox_esr::::::::

Information

Published : 2019-04-26 10:29

Updated : 2020-08-24 10:37

NVD link : CVE-2019-9813

Mitre link : CVE-2019-9813

JSON object : View

CWE

CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')

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Products Affected

mozilla

firefox
firefox_esr
thunderbird

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