CVE Vulnerabilities

CVE-2022-0581

Use After Free

Published: Feb 14, 2022 | Modified: Nov 03, 2025
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM
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Crash in the CMS protocol dissector in Wireshark 3.6.0 to 3.6.1 and 3.4.0 to 3.4.11 allows denial of service via packet injection or crafted capture file

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

NameVendorStart VersionEnd Version
WiresharkWireshark3.4.0 (including)3.4.12 (excluding)
WiresharkWireshark3.6.0 (including)3.6.2 (excluding)
WiresharkUbuntubionic*
WiresharkUbuntuesm-apps/bionic*
WiresharkUbuntuesm-apps/focal*
WiresharkUbuntuesm-apps/xenial*
WiresharkUbuntuesm-infra-legacy/trusty*
WiresharkUbuntufocal*
WiresharkUbuntuimpish*
WiresharkUbuntukinetic*
WiresharkUbuntulunar*
WiresharkUbuntumantic*
WiresharkUbuntutrusty*
WiresharkUbuntutrusty/esm*
WiresharkUbuntuupstream*
WiresharkUbuntuxenial*

Potential Mitigations

References