CVE-2020-36211
Data races in gfwx
An issue was discovered in the gfwx crate before 0.3.0 for Rust. Because ImageChunkMut does not have bounds on its Send trait or Sync trait, a data race and memory corruption can occur.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- 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 gfwx crate before 0.3.0 for Rust. Because ImageChunkMut does not have bounds on its Send trait or Sync trait, a data race and memory corruption can occur.
- Record
CVE-2020-36211- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.4 Medium
AV:L/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-662, CWE-787
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in the gfwx crate before 0.3.0 for Rust. Because ImageChunkMut does not have bounds on its Send trait or Sync trait, a data race and memory corruption can occur.
- Record
CVE-2020-36211- Updated
- 2026-11-02
EUVDEUVD-2021-1938 No score
An issue was discovered in the gfwx crate before 0.3.0 for Rust. Because ImageChunkMut does not have bounds on its Send trait or Sync trait, a data race and memory corruption can occur.
- Record
EUVD-2021-1938- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xp6v-qx65-4pp7
Data races in gfwx
In the affected versions of this crate, ImageChunkMut<'_, T> unconditionally implements Send and Sync, allowing to create data races.
This can result in a memory corruption or undefined behavior when non thread-safe types are moved and referenced across thread boundaries.
The flaw was corrected in commit e7fb2f5 by adding T: Send bound to the Send impl and adding T: Sync bound to the Sync impl.
- Record
GHSA-xp6v-qx65-4pp7- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-662, CWE-787
- Updated
- 2026-11-02
OSV
An issue was discovered in the gfwx crate before 0.3.0 for Rust. Because ImageChunkMut does not have bounds on its Send trait or Sync trait, a data race and memory corruption can occur.
- Record
CVE-2020-36211- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-xp6v-qx65-4pp7
Data races in gfwx
In the affected versions of this crate, ImageChunkMut<'_, T> unconditionally implements Send and Sync, allowing to create data races.
This can result in a memory corruption or undefined behavior when non thread-safe types are moved and referenced across thread boundaries.
The flaw was corrected in commit e7fb2f5 by adding T: Send bound to the Send impl and adding T: Sync bound to the Sync impl.
- Record
GHSA-xp6v-qx65-4pp7- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-662, CWE-787
- Updated
- 2026-11-02
OSVRUSTSEC-2020-0104
ImageChunkMut needs bounds on its Send and Sync traits
In the affected versions of this crate, ImageChunkMut<'_, T> unconditionally implements Send and Sync, allowing to create data races.
This can result in a memory corruption or undefined behavior when non thread-safe types are moved and referenced across thread boundaries.
The flaw was corrected in commit e7fb2f5 by adding T: Send bound to the Send impl and adding T: Sync bound to the Sync impl.
- Record
RUSTSEC-2020-0104- CVSS 3.1
- 7.0 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| 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-2020-36211 is a high vulnerability (CVSS 7.0) in Devolutions Gfwx, published December 8, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 28th percentile. Fixed in gfwx 0.3.0.