CVE-2021-31162

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

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

En la biblioteca estándar de Rust versiones anteriores a 1.52.0, se puede producir una doble liberación en la función Vec::from_iter si se libera los pánicos del elemento

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-04-14 CVE Reserved
2021-04-14 CVE Published
2023-12-29 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-415: Double Free
CWE-416: Use After Free

CAPEC

References (9)

URL	Tag	Source

URL	Date	SRC
https://github.com/rust-lang/rust/issues/83618	2024-08-03

URL	Date	SRC
https://github.com/rust-lang/rust/pull/83629	2023-11-07
https://github.com/rust-lang/rust/pull/84603	2023-11-07

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CZ337CM4GFJLRDFVQCGC7J25V65JXOG5	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFUO3URYCO73D2Q4WYJBWAMJWGGVXQO4	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZG65GUW6Z2CYOQHF7T3TB5CZKIX6ZJE	2023-11-07
https://security.gentoo.org/glsa/202210-09	2023-11-07
https://access.redhat.com/security/cve/CVE-2021-31162	2021-08-10
https://bugzilla.redhat.com/show_bug.cgi?id=1950398	2021-08-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Rust-lang Search vendor "Rust-lang"		Rust Search vendor "Rust-lang" for product "Rust"				>= 1.48.0 < 1.52.0 Search vendor "Rust-lang" for product "Rust" and version " >= 1.48.0 < 1.52.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				32 Search vendor "Fedoraproject" for product "Fedora" and version "32"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				33 Search vendor "Fedoraproject" for product "Fedora" and version "33"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected