CVE-2021-36976

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

20/07/2021

Last modified:

03/11/2025

Description

libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

6.50

Severity 3.x

MEDIUM

Vector 2.0

AV:N/AC:M/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0

4.30

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:libarchive:libarchive::::::::	3.4.1 (including)	3.5.2 (including)
cpe:2.3:o:fedoraproject:fedora:35:::::::*
cpe:2.3:o:apple:ipados::::::::		15.4 (excluding)
cpe:2.3:o:apple:iphone_os::::::::		15.4 (excluding)
cpe:2.3:o:apple:macos::::::::		12.3 (excluding)
cpe:2.3:o:apple:watchos::::::::		8.5 (excluding)
cpe:2.3:a:splunk:universal_forwarder::::::::	8.2.0 (including)	8.2.12 (excluding)
cpe:2.3:a:splunk:universal_forwarder::::::::	9.0.0 (including)	9.0.6 (excluding)
cpe:2.3:a:splunk:universal_forwarder:9.1.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-36976

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools