CVE-2020-26950

CVE Details

Release Date:

2020-12-09

Description

In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2.

See more information about CVE-2020-26950 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	8.8	Base Metrics:	AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	None	User Interaction:	Required
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	High	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (firefox)	ELSA-2020-5104	2020-11-14
Oracle Linux version 6 (thunderbird)	ELSA-2020-5164	2020-11-23
Oracle Linux version 7 (firefox)	ELSA-2020-5099	2020-11-13
Oracle Linux version 7 (thunderbird)	ELSA-2020-5163	2020-11-24
Oracle Linux version 8 (firefox)	ELSA-2020-5100	2020-11-17
Oracle Linux version 8 (thunderbird)	ELSA-2020-5146	2020-11-19

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team