CVE-2021-33643

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Summary

CVECVE-2021-33643
StatePUBLISHED
AssigneropenEuler
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-08-10 20:15:20 UTC
Updated2026-06-23 16:16:57 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v3.1 9.1 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Problem Types: CWE-125 | CWE-125 CWE-125: Out-of-bounds Read

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
3.1ADPDECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 35 All All All
Operating System Fedoraproject Fedora 36 All All All
Operating System Fedoraproject Fedora 37 All All All
Application Feep Libtar All All All All
Operating System Openatom Openeuler 20.03 sp1 All All
Operating System Openatom Openeuler 20.03 sp3 All All
Operating System Openatom Openeuler 22.03 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na Libtar affected <1.2.21 Not specified

References

ReferenceSourceLinkTags
lists.debian.org/debian-lts-announce/2025/01/msg00026.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
[SECURITY] Fedora 36 Update: libtar-1.2.20-26.fc36 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] Fedora 37 Update: libtar-1.2.20-25.fc37 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] Fedora 37 Update: libtar-1.2.20-26.fc37 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] Fedora 36 Update: libtar-1.2.20-25.fc36 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
[SECURITY] Fedora 35 Update: libtar-1.2.20-25.fc35 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Security-bulletinDetail af854a3a-2127-422b-91ae-364da2661108 www.openeuler.org Broken Link, Third Party Advisory
[SECURITY] Fedora 37 Update: libtar-1.2.20-25.fc37 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 36 Update: libtar-1.2.20-25.fc36 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 37 Update: libtar-1.2.20-26.fc37 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 36 Update: libtar-1.2.20-26.fc36 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
[SECURITY] Fedora 35 Update: libtar-1.2.20-25.fc35 - package-announce - Fedora Mailing-Lists MITRE lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 160685 Oracle Enterprise Linux Security Update for libtar (ELSA-2023-2898)
  • 241493 Red Hat Update for libtar (RHSA-2023:2898)
  • 283086 Fedora Security Update for libtar (FEDORA-2022-fe1a4e3cf0)
  • 283087 Fedora Security Update for libtar (FEDORA-2022-50e8a1b51d)
  • 283563 Fedora Security Update for libtar (FEDORA-2022-ccc68b06cc)
  • 283564 Fedora Security Update for libtar (FEDORA-2022-88772d0a2d)
  • 378648 Alibaba Cloud Linux Security Update for libtar (ALINUX3-SA-2023:0067)
  • 672318 EulerOS Security Update for libtar (EulerOS-SA-2022-2713)
  • 672599 EulerOS Security Update for libtar (EulerOS-SA-2023-1324)
  • 902725 Common Base Linux Mariner (CBL-Mariner) Security Update for libtar (10524)
  • 902734 Common Base Linux Mariner (CBL-Mariner) Security Update for libtar (10542)
  • 903949 Common Base Linux Mariner (CBL-Mariner) Security Update for libtar (10542-1)
  • 903978 Common Base Linux Mariner (CBL-Mariner) Security Update for libtar (10524-1)
  • 941084 AlmaLinux Security Update for libtar (ALSA-2023:2898)
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