PT-2022-10276 · Tar+10 · Tar+10

Published 2022-08-05 · Updated 2025-04-24 · CVE-2021-33643

Positive Technologies (AI Summary)

CVSS v2.0

9.4

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:N/A:C

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.

Out of bounds Read

Weakness Enumeration

CWE-125

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

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

References · 53

• https://ubuntu.com/security/CVE-2021-33644 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-10542 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-34946 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5YSHZY753R7XW6CIKJVAWI373WW3YRRJ · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S4PJRCJLEAWN2EKXGLSOBTL7O57V7NC · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2023:2898 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-1020SE47 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7Q26QDNOJDOFYWMJWEIK5XR62M2FF6IJ · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2022-0335 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2022-0335.html · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/OD4HEBSTI22FNYKOKK7W3X6ZQE6FV3XC · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-33643 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2023-2898.html · Vendor Advisory
• https://errata.almalinux.org/8/ALSA-2023-2898.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-33646 · Vendor Advisory