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CVE-2020-15254
Date: October 16, 2020
Crossbeam is a set of tools for concurrent programming. In crossbeam-channel before version 0.4.4, the bounded channel incorrectly assumes that "Vec::from_iter" has allocated capacity that same as the number of iterator elements. "Vec::from_iter" does not actually guarantee that and may allocate extra memory. The destructor of the "bounded" channel reconstructs "Vec" from the raw pointer based on the incorrect assumes described above. This is unsound and causing deallocation with the incorrect capacity when "Vec::from_iter" has allocated different sizes with the number of iterator elements. This has been fixed in crossbeam-channel 0.4.4.
Language: RUST
Severity Score
Related Resources (10)
Severity Score
Weakness Type (CWE)
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | HIGH |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | HIGH |
| Integrity (I): | HIGH |
| Availability (A): | HIGH |
CVSS v2
| Base Score: |
|
|---|---|
| Access Vector (AV): | NETWORK |
| Access Complexity (AC): | LOW |
| Authentication (AU): | NONE |
| Confidentiality (C): | PARTIAL |
| Integrity (I): | PARTIAL |
| Availability (A): | PARTIAL |
| Additional information: |