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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2020-15254 Detail

Description

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.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/RustSec/advisory-db/pull/425 Patch  Third Party Advisory 
https://github.com/RustSec/advisory-db/pull/425 Patch  Third Party Advisory 
https://github.com/crossbeam-rs/crossbeam/issues/539 Exploit  Third Party Advisory 
https://github.com/crossbeam-rs/crossbeam/issues/539 Exploit  Third Party Advisory 
https://github.com/crossbeam-rs/crossbeam/pull/533 Exploit  Patch  Third Party Advisory 
https://github.com/crossbeam-rs/crossbeam/pull/533 Exploit  Patch  Third Party Advisory 
https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-v5m7-53cv-f3hx Third Party Advisory 
https://github.com/crossbeam-rs/crossbeam/security/advisories/GHSA-v5m7-53cv-f3hx Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-401 Missing Release of Memory after Effective Lifetime cwe source acceptance level NIST  
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-15254
NVD Published Date:
10/16/2020
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.