rust-lang/futures-rs · Security
futures_task::waker may cause a use-after-free if used on a type that isn't 'static
- GHSA ID
- GHSA-r93v-9p5q-vhpf
- CVE ID
- CVE-2020-35906
- Severity
- high
- Published
- Updated
- CVSS
- 7.8 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 7.8 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
Affected versions of the crate did not properly implement a 'static lifetime bound on the waker function. This resulted in a use-after-free if Waker::wake() is called after original data had been dropped.
The flaw was corrected by adding 'static lifetime bound to the data waker takes.
CWEs
- CWE-416 · Use After Free