• CVE-2020-26972

发布时间: 2022年3月11日

修改时间: 2022年3月11日

概要

The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 84.

CVSS v3 指标

NVD openEuler
Confidentiality High High
Attack Vector Network Network
CVSS评分 9.8 9.8
Attack Complexity Low Low
Privileges Required None None
Scope Unchanged Unchanged
Integrity High High
User Interaction None None
Availability High High

安全公告

公告名 概要 发布时间
KylinSec-SA-2022-1192 The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 84. 2022年3月11日

影响产品

产品 状态
KY3.4-4A mozjs78 Unaffected
KY3.4-5 mozjs78 Unaffected