PT-2020-17644 · Rust · Syncpool

Published 2020-11-29 · Updated 2021-08-25 · CVE-2020-36462

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base 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 syncpool crate versions prior to 0.1.6

Description An issue in the syncpool crate allows sending non-Send types to other threads, leading to data races when non-Send types like Cell<T> or Rc<T> are contained inside Bucket2 and sent across thread boundaries. This can potentially lead to memory corruption. The flaw was corrected by adding a T: Send bound to the Send impl of Bucket2<T>.

Recommendations For versions prior to 0.1.6, update to version 0.1.6 or later to resolve the issue. As a temporary workaround, consider avoiding the use of non-Send types like Cell<T> or Rc<T> inside Bucket2 to minimize the risk of data races and memory corruption.

Exploit

Fix

Command Injection

Race Condition

Weakness Enumeration

CWE-77

CWE-362

Related Identifiers

CVE-2020-36462

GHSA-R88H-6987-G79F

GHSA-VP6R-MRQ9-8F4H

RUSTSEC-2020-0142

Affected Products

Syncpool

References · 12

• 🔥 https://rustsec.org/advisories/RUSTSEC-2020-0142.html · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-36462 · Security Note
• https://osv.dev/vulnerability/GHSA-r88h-6987-g79f · Vendor Advisory
• https://osv.dev/vulnerability/RUSTSEC-2020-0142 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-vp6r-mrq9-8f4h · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-36462 · Vendor Advisory
• https://github.com/RustSec/advisory-db/blob/main/crates/syncpool/RUSTSEC-2020-0142.md · Note
• https://github.com/Chopinsky/byte_buffer/issues/2 · Note
• https://github.com/Chopinsky/byte_buffer/commit/15b282877d1e576de2b337d8162bbf43ed1a0f2d · Note
• https://github.com/Chopinsky/byte_buffer/tree/master/syncpool · Note
• https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/syncpool/RUSTSEC-2020-0142.md · Note
• https://crates.io/crates/syncpool · Note