CVE-2021-31162

CRITICAL

Rust < 1.52.0 - Double Free

Title source: rule

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.

References (7)

[Exploit, Third Party Advisory] https://github.com/rust-lang/rust/issues/83618

[Patch, Third Party Advisory] https://github.com/rust-lang/rust/pull/83629

[Patch, Third Party Advisory] https://github.com/rust-lang/rust/pull/84603

[Third Party Advisory] https://security.gentoo.org/glsa/202210-09

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CZ337CM4GFJLRDFVQCGC7J25V65JXOG5/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFUO3URYCO73D2Q4WYJBWAMJWGGVXQO4/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZG65GUW6Z2CYOQHF7T3TB5CZKIX6ZJE/

Scores

CVSS v3 9.8

EPSS 0.0182

EPSS Percentile 82.7%

Attack Vector NETWORK

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

Classification

CWE

CWE-415

Status published

Affected Products (4)

rust-lang/rust < 1.52.0

fedoraproject/fedora

fedoraproject/fedora

fedoraproject/fedora

Timeline

Published Apr 14, 2021

Tracked Since Feb 18, 2026