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TI-2020-18601 Aliases CVE-2020-36318GHSA-w7c8-v5h2-32ff

In the standard library in Rust before 1.49.0, VecDeque::make_contiguous has a bug that…

Priority MEDIUM 45CWE-415Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-415 and the CVSS impact.

Summary

In the standard library in Rust before 1.49.0, VecDeque::make_contiguous has a bug that pops the same element more than once under certain condition. This bug could result in a use-after-free or double free.

Why it matters now

EPSS 0.01676 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:*1.48.0 to before 1.49.0Vulnerablerust-lang
  • cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:* Versions 1.48.0 to before 1.49.0 Vulnerable ·rust-lang

Remediation

Red Hat 2 advisories

  • RHSA-2021:2243 Released 2021-06-03 · Red Hat rating Low
    rust-toolset-1.49 and rust-toolset-1.49-rust update
    • Red Hat Developer Tools for Red Hat Enterprise Linux Server (v. 7) rust-toolset-1.49-1.49.0-1.el7_9, rust-toolset-1.49-build-1.49.0-1.el7_9, rust-toolset-1.49-cargo-1.49.0-1.el7_9 +13
    • Red Hat Developer Tools for Red Hat Enterprise Linux Workstation (v. 7) rust-toolset-1.49-1.49.0-1.el7_9, rust-toolset-1.49-build-1.49.0-1.el7_9, rust-toolset-1.49-cargo-1.49.0-1.el7_9 +13
  • RHSA-2021:1935 Released 2021-05-18 · Red Hat rating Low
    rust-toolset:rhel8 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) cargo-1.49.0-1.module+el8.4.0+9446+1a463e08.aarch64::rust-toolset:rhel8, cargo-1.49.0-1.module+el8.4.0+9446+1a463e08.ppc64le::rust-toolset:rhel8, cargo-1.49.0-1.module+el8.4.0+9446+1a463e08.s390x::rust-toolset:rhel8 +40

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Developer Tools for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2021:2243
Red Hat Developer Tools for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2021:2243
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:1935
Not affected: 1 product
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-36318
  2. 2026-10-03 Alias added: GHSA-w7c8-v5h2-32ff

References

Exploit 1

Patch 1

  • TI-2024-16197 Rusts's `std::process::Command` did not properly escape arguments of batch files on Windows CVSS 3.1CRITICAL 10.0
  • TI-2024-03325 Command injection vulnerability in programing languages on Microsoft Windows operating system. CVSS 3.1CRITICAL 9.8
  • TI-2022-06036 Race condition in std::fs::remove_dir_all in rustlang CVSS 3.1HIGH 7.3
  • TI-2018-16034 The Rust Programming Language Standard Library version 1.29.0, 1.28.0, 1.27.2, 1.27.1… CVSS 3.0CRITICAL 9.8
  • TI-2021-11383 In the standard library in Rust before 1.52.0, a double free can occur in the… CVSS 3.1CRITICAL 9.8
  • TI-2021-09849 In the standard library in Rust before 1.52.0, the Zip implementation can report an… CVSS 3.1CRITICAL 9.8
See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences