PT-2020-16111 · Rust · Linked-Hash-Map

Published 2020-06-23 · Updated 2021-08-25 · CVE-2020-25573

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 linked-hash-map crate versions prior to 0.5.3

Description An issue was discovered in the linked-hash-map crate, where it creates an uninitialized NonNull pointer, violating a non-null constraint. The affected versions of this crate called mem::uninitialized() to create a NonNull<T>, which is undefined behavior. The flaw was corrected by avoiding the use of mem::uninitialized().

Recommendations For versions prior to 0.5.3, update to version 0.5.3 or later to resolve the issue. As a temporary workaround, consider avoiding the use of mem::uninitialized() in the affected crate until a patch is available.

Exploit

Fix

Access of Uninitialized Pointer

Weakness Enumeration

CWE-824

Related Identifiers

CVE-2020-25573

GHSA-R43H-GMRM-H5C9

RUSTSEC-2020-0026

Affected Products

Linked-Hash-Map

References · 13

• 🔥 https://github.com/contain-rs/linked-hash-map/pull/100 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-25573 · Security Note
• https://osv.dev/vulnerability/RUSTSEC-2020-0026 · Vendor Advisory
• https://rustsec.org/advisories/RUSTSEC-2020-0026.html · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-25573 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-25573 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-25573 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-25573 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-25573 · Security Note
• https://osv.dev/vulnerability/CVE-2020-25573 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-r43h-gmrm-h5c9 · Vendor Advisory
• https://github.com/contain-rs/linked-hash-map · Note
• https://crates.io/crates/linked-hash-map · Note