Use after free in Exosphere in Google Chrome on Chrome OS and Lacros prior to 104.0.5112.79 allowed a remote attacker who convinced a user to engage in specific UI interactions to potentially exploit heap corruption via crafted UI interactions. (Chrome security severity: High)
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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/2022/08/stable-channel-update-for-desktop.html | release notes vendor advisory |
| https://crbug.com/1319172 | vendor advisory issue tracking exploit |