CVE-2020-15254

Source

https://nvd.nist.gov/vuln/detail/CVE-2020-15254

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15254.json

Aliases

• CVE-2020-35904
• GHSA-m8h8-v6jh-c762
• GHSA-v5m7-53cv-f3hx
• RUSTSEC-2020-0052

Related

• USN-4599-1
• USN-4599-2

Published

2020-10-16T17:15:12Z

Modified

2023-11-29T08:06:38.502536Z

Details

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.

References

• https://github.com/RustSec/advisory-db/pull/425
• https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-v5m7-53cv-f3hx
• https://github.com/crossbeam-rs/crossbeam/issues/539
• https://github.com/crossbeam-rs/crossbeam/pull/533