PT-2021-24279 · Nanorand · Nanorand

Absolucy · Published 2021-09-23 · Updated 2022-06-17 · CVE-2021-45705

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base 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: nanorand crate versions prior to 0.6.1

Description: The issue arises from the TlsWyRand implementation of Deref, which unconditionally dereferences a raw pointer and returns multiple mutable references to the same object. This behavior is undefined and can lead to unpredictable outcomes.

Recommendations: For versions prior to 0.6.1, update to version 0.6.1 or later to resolve the issue. As a temporary workaround, consider restricting the use of TlsWyRand to minimize the risk of exploitation.

Fix

Related Identifiers

CVE-2021-45705

GHSA-P6GJ-GPC8-F8XW

GHSA-R57R-J98G-587F

RUSTSEC-2021-0114

Affected Products

Nanorand

References · 10

• https://osv.dev/vulnerability/GHSA-p6gj-gpc8-f8xw · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-45705 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-r57r-j98g-587f · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-45705 · Security Note
• https://osv.dev/vulnerability/RUSTSEC-2021-0114 · Vendor Advisory
• https://github.com/Absolucy/nanorand-rs · Note
• https://github.com/Absolucy/nanorand-rs/issues/28 · Note
• https://rustsec.org/advisories/RUSTSEC-2021-0114.html · Note
• https://crates.io/crates/nanorand · Note
• https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/nanorand/RUSTSEC-2021-0114.md · Note