CVE-2021-28037
Data race in internment
An issue was discovered in the internment crate before 0.4.2 for Rust. There is a data race that can cause memory corruption because of the unconditional implementation of Sync for Intern<T>.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in the internment crate before 0.4.2 for Rust. There is a data race that can cause memory corruption because of the unconditional implementation of Sync for Intern<T>.
- Record
CVE-2021-28037- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
An issue was discovered in the internment crate before 0.4.2 for Rust. There is a data race that can cause memory corruption because of the unconditional implementation of Sync for Intern<T>.
- Record
CVE-2021-28037- Updated
- 2026-11-02
EUVDEUVD-2021-1727 No score
An issue was discovered in the internment crate before 0.4.2 for Rust. There is a data race that can cause memory corruption because of the unconditional implementation of Sync for Intern<T>.
- Record
EUVD-2021-1727- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gppw-3h6h-v6q2
Data race in internment
An issue was discovered in the internment crate before 0.4.2 for Rust. There is a data race that can cause memory corruption because of the unconditional implementation of Sync for Intern<T>.
- Record
GHSA-gppw-3h6h-v6q2- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-362
- Updated
- 2026-11-02
OSVGHSA-gppw-3h6h-v6q2
Data race in internment
An issue was discovered in the internment crate before 0.4.2 for Rust. There is a data race that can cause memory corruption because of the unconditional implementation of Sync for Intern<T>.
- Record
GHSA-gppw-3h6h-v6q2- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-362
- Updated
- 2026-11-02
OSVRUSTSEC-2021-0036
Intern<T>: Data race allowed on T
Affected versions of this crate unconditionally implements Sync for Intern<T>.
This allows users to create data race on T: !Sync, which may lead to undefined behavior
(for example, memory corruption).
The flaw was corrected in commit 2928a87 by adding the trait bound T: Sync in the Sync impl of Intern<T>.
- Record
RUSTSEC-2021-0036- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
internmentcrates.io |
before 0.4.2 | 0.4.2 |
internmentcrates.io |
0.0.0-0 up to 0.4.2 | 0.4.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-28037 is a critical vulnerability (CVSS 9.8) in Internment Project Internment, published March 3, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.29%, the 70th percentile. Fixed in internment 0.4.2.