PT-2020-17518 · Rust · Arr Crate
Published
2020-08-25
·
Updated
2021-08-25
·
CVE-2020-35886
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 versions through 2020-08-25
Description
The issue allows an attacker to smuggle non-Sync/Send types across a thread boundary, causing a data race. Specifically, the arr crate incorrectly implements Sync/Send bounds. Additionally, the Index and IndexMut implementation does not check the array bound, and Array::new from template() drops uninitialized memory.
Recommendations
For arr crate versions through 2020-08-25, consider disabling the use of
Index and IndexMut implementations until a patch is available. Restrict the use of Array::new from template() to prevent dropping uninitialized memory. As a temporary workaround, avoid using the arr crate to smuggle 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