PT-2020-17520 · Rust · Arr Crate
Published
2020-08-25
·
Updated
2021-08-25
·
CVE-2020-35888
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
arr crate through 2020-08-25
Description
The issue concerns the arr crate, which contains multiple security issues. These include incorrect implementation of Sync/Send bounds, allowing non-Sync/Send types to be smuggled across thread boundaries. Additionally, the Index and IndexMut implementation does not check array bounds. The Array::new from template() function drops uninitialized memory.
Recommendations
For arr crate through 2020-08-25, consider updating to a version released after 2020-08-25 to address the security issues.
As a temporary workaround, consider restricting the use of the Array::new from template() function until a patch is available.
Avoid using the Index and IndexMut implementations without manually checking array bounds to prevent potential errors.
Restrict access to the arr crate's Sync/Send bounds implementation to minimize the risk of smuggling non-Sync/Send types across thread boundaries.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Buffer Overflow
Race Condition
Use of Uninitialized Resource
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Related Identifiers
Affected Products
Arr Crate