CVE-2021-33643 - AskarLabs CVE Database

CVE-2021-33643

Vendor N/A

Product libtar

Weakness CWE-125

Published August 9, 2022

Last update November 3, 2025

View on NVD All CVEs

CVSS base score

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What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 9, 2022 CVE published

November 3, 2025 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2021-33643 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/125.html

Related vulnerabilities

04Related CVE

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