PT-2020-17625 · Rust · Convec Crate

Published 2020-11-24 · Updated 2021-08-25 · CVE-2020-36445

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 convec crate through 2020-11-24

Description The issue allows users to insert types that are not Send or not Sync into ConVec<T>, enabling the creation of data races. This can be achieved by using non-Send types like Arc<Cell< >> or Rc< > as T in ConVec<T>, or by using types like Cell< > or RefCell< > as T, which are Send but not Sync. Such data races can lead to memory corruption.

Recommendations For the convec crate through 2020-11-24, consider avoiding the use of non-Send or non-Sync types as T in ConVec<T> to prevent data races. As a temporary workaround, restrict the use of ConVec<T> with types that are not Send or Sync until a fix is available.

Fix

Race Condition

Buffer Overflow

Weakness Enumeration

CWE-362

CWE-119

Related Identifiers

CVE-2020-36445

GHSA-RPXM-VMR7-5F5F

RUSTSEC-2020-0125

Affected Products

Convec Crate

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2020-36445 · Security Note
• https://osv.dev/vulnerability/CVE-2020-36445 · Vendor Advisory
• https://osv.dev/vulnerability/RUSTSEC-2020-0125 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-rpxm-vmr7-5f5f · Vendor Advisory
• https://github.com/krl/convec/issues/2 · Note
• https://github.com/krl/convec · Note
• https://rustsec.org/advisories/RUSTSEC-2020-0125.html · Note
• https://crates.io/crates/convec · Note
• https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/convec/RUSTSEC-2020-0125.md · Note