PulseLinuxLINUX UPDATE INTELLIGENCE
CVE Database›Document archive›CVE-2021-33644

CVE-2021-33644

libtar: out-of-bounds read in gnu_longname

Loading…

Severity

Moderate

Red Hat Product Security

6.8

CVSS 3.1

Review impact separately from score.

Published · August 10, 2022

Updated · November 21, 2025

Description

A flaw was found in libtar. This flaw allows an attacker who submits a crafted tar file with size in header struct being 0 to trigger a calling of malloc(0) for a variable gnu_longname, causing an out-of-bounds read.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.8
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H

CWE-125 · Out-of-bounds Read