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CVE-2021-33643

nvd nist
Published: Aug 10, 2022Modified: Jun 23, 2026

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9.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Exploitability: 3.9 / Impact: 5.2
Source: NVD

Description

An 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.

Affected (7)

Feep
1 product
Libtar
Openatom
1 product
Openeuler
Fedoraproject
1 product
Fedora
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Libtar
Before 1.2.21
Configuration B
3 vulnerable
Vulnerable SoftwareAffected Versions
Openatom
Openeuler
Version 20.03 sp1
Openeuler
Version 20.03 sp3
Openeuler
Version 22.03
Configuration C
3 vulnerable
Vulnerable SoftwareAffected Versions
Fedoraproject
Fedora
Version 35
Fedora
Version 36
Fedora
Version 37

Related CWEs

CWE-125
Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.

References (13)

Source: securities@openeuler.org
Source: securities@openeuler.org
Source: securities@openeuler.org
Source: securities@openeuler.org
Source: securities@openeuler.org
Source: securities@openeuler.org
Broken LinkThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Broken LinkThird Party Advisory

Timeline

No history available yet.