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CVE-2021-31162

rust: double free in Vec::from_iter function if freeing the element panics

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Severity

Moderate

Red Hat Product Security

9.8

CVSS 3.1

Review impact separately from score.

Published · March 28, 2021

Updated · August 9, 2026

Description

In the standard library in Rust before 1.52.0, a double free can occur in the Vec::from_iter function if freeing the element panics.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-416 · Use After Free