PT-2020-17627 · Rust · V9 Crate
Published
2020-12-18
·
Updated
2022-11-03
·
CVE-2020-36447
CVSS v3.1
8.1
High
| Vector | AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
v9 crate through 2020-12-18
Description
An issue was discovered in the v9 crate, where affected versions unconditionally implement
Sync for SyncRef<T>. This definition allows data races if &T is accessible through &SyncRef. The SyncRef<T> derives Clone and Debug, and the default implementations of those traits access &T by invoking T::clone() and T::fmt(). It is possible to create data races and undefined behavior by concurrently invoking SyncRef<T>::clone() or SyncRef<T>::fmt() from multiple threads with T: !Sync.Recommendations
For v9 crate through 2020-12-18, as a temporary workaround, consider avoiding concurrent invocation of
SyncRef<T>::clone() or SyncRef<T>::fmt() from multiple threads with T: !Sync until a patch is available.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
Command Injection
Race Condition
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Related Identifiers
Affected Products
V9 Crate