CVE-2020-15254

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.
Configurations

Configuration 1 (hide)

cpe:2.3:a:crossbeam_project:crossbeam:*:*:*:*:*:*:*:*

History

05 Aug 2022, 19:30

Type Values Removed Values Added
CWE CWE-119 CWE-401

Information

Published : 2020-10-16 17:15

Updated : 2022-08-05 19:30


NVD link : CVE-2020-15254

Mitre link : CVE-2020-15254


JSON object : View

Products Affected

crossbeam_project

  • crossbeam
CWE
CWE-401

Missing Release of Memory after Effective Lifetime