PT-2022-10276 · Tar+10 · Tar+10

CVE-2021-33643

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Published

2022-08-05

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Updated

2026-06-23

CVSS v3.1

9.4

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Name of the Vulnerable Software and Affected Versions No specific software or versions are mentioned in the provided descriptions.
Description The issue allows an attacker to trigger an out-of-bounds read by submitting a crafted tar file with a size of 0 in the header struct. This can cause the malloc(0) function to be called for the gnu longlink variable.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Out of bounds Read

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Weakness Enumeration

Related Identifiers

ALSA-2023:2898
ALT-PU-2023-7462
ALT-PU-2023-7618
ALT-PU-2025-5034
AZL-10542
AZL-34946
BDU:2025-05004
CESA-2023_2898
CVE-2021-33643
DLA-4033-1
MGASA-2022-0335
OESA-2022-1807
OPENSUSE-SU-2026:11092-1
RHSA-2023:2898
RHSA-2023_2898
USN-7398-1

Affected Products

Alt Linux
Almalinux
Astra Linux
Centos
Debian
Linuxmint
Red Hat
Red Os
Rocky Linux
Ubuntu
Tar