NVD

CVE-2021-33643 Detail

Modified

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

Description

An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longlink, causing an out-of-bounds read.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 9.1 CRITICAL

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

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://lists.debian.org/debian-lts-announce/2025/01/msg00026.html	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S4PJRCJLEAWN2EKXGLSOBTL7O57V7NC/	CVE, openEuler
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5YSHZY753R7XW6CIKJVAWI373WW3YRRJ/	CVE, openEuler
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7Q26QDNOJDOFYWMJWEIK5XR62M2FF6IJ/	CVE, openEuler
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WX5YE66CT7Y5C2HTHXSFDKQWYWYWJ2T/	CVE, openEuler
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD4HEBSTI22FNYKOKK7W3X6ZQE6FV3XC/	CVE, openEuler
https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1807	CVE, openEuler	Broken Link Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-125	Out-of-bounds Read	NIST openEuler

Known Affected Software Configurations Switch to CPE 2.2

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Change History

14 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-33643
NVD Published Date:
08/10/2022
NVD Last Modified:
11/03/2025
Source:
openEuler

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2021-33643 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CVE 11/03/2025 4:15:41 PM

CPE Deprecation Remap by NIST 4/02/2025 2:33:53 PM

CPE Deprecation Remap by NIST 4/02/2025 2:33:53 PM

CPE Deprecation Remap by NIST 4/02/2025 2:33:53 PM

CVE Modified by CVE 11/21/2024 1:09:15 AM

CVE Modified by openEuler 5/14/2024 5:10:46 AM

CVE Modified by openEuler 11/06/2023 10:35:53 PM

Modified Analysis by NIST 2/23/2023 11:16:53 AM

CVE Modified by openEuler 12/27/2022 11:15:09 PM

CVE Modified by openEuler 12/27/2022 10:15:09 PM

Modified Analysis by NIST 9/16/2022 4:01:55 PM

CVE Modified by openEuler 9/12/2022 5:15:08 PM

CVE Modified by openEuler 9/04/2022 9:15:07 PM

Initial Analysis by NIST 8/12/2022 8:17:55 PM

Quick Info