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_longname, causing an out-of-bounds read.
Published: 2022-08-09
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4033-1 libtar security update
EUVD EUVD EUVD-2021-20321 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_longname, causing an out-of-bounds read.
Ubuntu USN Ubuntu USN USN-7398-1 libtar vulnerabilities
History

Mon, 03 Nov 2025 21:30:00 +0000

Type Values Removed Values Added
References

Wed, 02 Apr 2025 19:00:00 +0000

Type Values Removed Values Added
First Time appeared Openatom
Openatom openeuler
CPEs cpe:2.3:o:huawei:openeuler:20.03:sp1:*:*:lts:*:*:*
cpe:2.3:o:huawei:openeuler:20.03:sp3:*:*:lts:*:*:*
cpe:2.3:o:huawei:openeuler:22.03:*:*:*:lts:*:*:*
cpe:2.3:o:openatom:openeuler:20.03:sp1:*:*:lts:*:*:*
cpe:2.3:o:openatom:openeuler:20.03:sp3:*:*:lts:*:*:*
cpe:2.3:o:openatom:openeuler:22.03:*:*:*:lts:*:*:*
Vendors & Products Huawei
Huawei openeuler
Openatom
Openatom openeuler

Subscriptions

Fedoraproject Fedora
Feep Libtar
Openatom Openeuler
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: openEuler

Published:

Updated: 2025-11-03T20:33:37.233Z

Reserved: 2021-05-28T00:00:00.000Z

Link: CVE-2021-33644

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-08-10T20:15:20.517

Modified: 2025-11-03T21:15:41.270

Link: CVE-2021-33644

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-08-10T00:00:00Z

Links: CVE-2021-33644 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses