adrienchampion/hashconsing · Security
Data races in hashconsing
- GHSA ID
- GHSA-rw2c-c256-3r53
- CVE ID
- CVE-2020-36215
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
Affected versions of hashconsing implements Send/Sync for its HConsed type without restricting it to Sendable types and Syncable types. This allows non-Sync types such as Cell to be shared across threads leading to undefined behavior and memory corruption in concurrent programs.
CWEs
- CWE-662 · Improper Synchronization
- CWE-787 · Out-of-bounds Write