Use after free in task scheduling in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://chromereleases.googleblog.com/2020/08/stable-channel-update-for-desktop.html | release notes vendor advisory |
| https://crbug.com/1104046 | vendor advisory permissions required |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EE7XWIZBME7JAY7N6CGPET4CLNHHEIVT/ | vendor advisory |
| https://www.debian.org/security/2021/dsa-4824 | third party advisory vendor advisory |
| https://security.gentoo.org/glsa/202101-30 | third party advisory vendor advisory |