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CVE-2021-39921

nvd nist
Published: Nov 19, 2021Modified: Nov 21, 2024

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

NULL pointer exception in the Modbus dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file

Affected (5)

Wireshark
1 product
Wireshark
Fedoraproject
1 product
Fedora
Debian
1 product
Debian Linux
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Wireshark
Wireshark
From 3.2.0 to 3.2.17
Wireshark
From 3.4.0 to 3.4.9
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Fedoraproject
Fedora
Version 34
Fedora
Version 35
Configuration C
1 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 9.0

Related CWEs

CWE-476
NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.

References (16)

Source: cve@gitlab.com
Third Party Advisory
Source: cve@gitlab.com
ExploitIssue TrackingPatchThird Party Advisory
Source: cve@gitlab.com
Mailing ListThird Party Advisory
Source: cve@gitlab.com
Source: cve@gitlab.com
Source: cve@gitlab.com
Third Party Advisory
Source: cve@gitlab.com
Third Party Advisory
Source: cve@gitlab.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.