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Test ID:1.3.6.1.4.1.25623.1.1.12.2025.7398.1
Category:Ubuntu Local Security Checks
Title:Ubuntu: Security Advisory (USN-7398-1)
Summary:The remote host is missing an update for the 'libtar' package(s) announced via the USN-7398-1 advisory.
Description:Summary:
The remote host is missing an update for the 'libtar' package(s) announced via the USN-7398-1 advisory.

Vulnerability Insight:
It was discovered that libtar may perform out-of-bounds reads when
processing specially crafted tar files. An attacker could possibly use
this issue to cause libtar to crash, resulting in a denial of service,
or execute arbitrary code. (CVE-2021-33643, CVE-2021-33644)

It was discovered that libtar contained a memory leak due to failing
to free a variable, causing performance degradation. An attacker
could possibly use this issue to cause libtar to crash, resulting in a
denial of service. (CVE-2021-33645, CVE-2021-33646)

Affected Software/OS:
'libtar' package(s) on Ubuntu 16.04, Ubuntu 18.04, Ubuntu 20.04, Ubuntu 22.04, Ubuntu 24.04, Ubuntu 24.10.

Solution:
Please install the updated package(s).

CVSS Score:
9.4

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2021-33643
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7Q26QDNOJDOFYWMJWEIK5XR62M2FF6IJ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OD4HEBSTI22FNYKOKK7W3X6ZQE6FV3XC/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4S4PJRCJLEAWN2EKXGLSOBTL7O57V7NC/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7WX5YE66CT7Y5C2HTHXSFDKQWYWYWJ2T/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5YSHZY753R7XW6CIKJVAWI373WW3YRRJ/
https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1807
Common Vulnerability Exposure (CVE) ID: CVE-2021-33644
Common Vulnerability Exposure (CVE) ID: CVE-2021-33645
Common Vulnerability Exposure (CVE) ID: CVE-2021-33646
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