CVE-2020-36323
Published: August 31, 2023Last modified: August 31, 2023
Description
In the standard library in Rust before 1.52.0, there is an optimization for joining strings that can cause uninitialized bytes to be exposed (or the program to crash) if the borrowed string changes after its length is checked.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.2 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | LOW |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | rust | Not affected (1.64.0-r2) |
| Stream | rust | Not affected (1.71.1-r1) |
References
- https://github.com/rust-lang/rust/issues/80335
- https://github.com/rust-lang/rust/pull/81728
- https://github.com/rust-lang/rust/pull/81728#issuecomment-821549174
- https://github.com/rust-lang/rust/pull/81728#issuecomment-824904190
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CZ337CM4GFJLRDFVQCGC7J25V65JXOG5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFUO3URYCO73D2Q4WYJBWAMJWGGVXQO4/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZG65GUW6Z2CYOQHF7T3TB5CZKIX6ZJE/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/CZ337CM4GFJLRDFVQCGC7J25V65JXOG5/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/TFUO3URYCO73D2Q4WYJBWAMJWGGVXQO4/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/VZG65GUW6Z2CYOQHF7T3TB5CZKIX6ZJE/