Executive Summary

Informations
Name CVE-2020-15254 First vendor Publication 2020-10-16
Vendor Cve Last vendor Modification 2022-08-05

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15254

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-401 Failure to Release Memory Before Removing Last Reference ('Memory Leak')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2

Sources (Detail)

Source Url
CONFIRM https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-v5m7-53cv-...
MISC https://github.com/crossbeam-rs/crossbeam/issues/539
https://github.com/crossbeam-rs/crossbeam/pull/533
https://github.com/RustSec/advisory-db/pull/425

Alert History

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Date Informations
2022-08-06 00:27:43
  • Multiple Updates
2022-03-01 01:45:47
  • Multiple Updates
2021-05-04 13:46:13
  • Multiple Updates
2021-04-22 02:58:37
  • Multiple Updates
2020-10-28 21:23:29
  • Multiple Updates
2020-10-17 00:22:55
  • Multiple Updates
2020-10-16 21:23:07
  • First insertion