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WS-2020-0236
Good to know:
Date: May 3, 2020
Versions before 0.3.5 of the crate 'futures' used a UnsafeCell in thread-local storage to return a noop waker reference, assuming that the reference would never be returned from another thread. This resulted in a segmentation fault crash if Waker::wake_by_ref() was called on a waker returned from another thread due to it attempting to dereference a pointer that wasn’t accesible from the main thread.
Language: RUST
Severity Score
Severity Score
Weakness Type (CWE)
Access of Uninitialized Pointer
CWE-824Top Fix
CVSS v3.1
Base Score: |
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Attack Vector (AV): | LOCAL |
Attack Complexity (AC): | LOW |
Privileges Required (PR): | NONE |
User Interaction (UI): | REQUIRED |
Scope (S): | UNCHANGED |
Confidentiality (C): | NONE |
Integrity (I): | NONE |
Availability (A): | HIGH |