PT-2021-6583 · Wireshark+3 · Wireshark+3

Published 2021-07-20 · Updated 2024-06-15 · CVE-2021-22235

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Wireshark versions 3.2.0 through 3.2.14 Wireshark versions 3.4.0 through 3.4.6

Description The issue is related to a crash in the DNP dissector, which can be exploited to cause a denial of service via packet injection or crafted capture file. This can be triggered by a remote attacker, leading to a disruption in service. The vulnerability is associated with an infinite loop due to an unreachable exit condition.

Recommendations For Wireshark versions 3.2.0 through 3.2.14, update to a version outside of this range to resolve the issue. For Wireshark versions 3.4.0 through 3.4.6, update to a version outside of this range to resolve the issue. As a temporary workaround, consider disabling the DNP dissector until a patch is available.

Exploit

Fix

DoS

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

ALT-PU-2021-2329

ALT-PU-2021-2362

ALT-PU-2021-2371

ALT-PU-2022-1368

AZL-7407

BDU:2022-01849

CVE-2021-22235

DLA-2849-1

DSA-5019-1

MGASA-2021-0364

OPENSUSE-SU-2021:1276-1

OPENSUSE-SU-2021:3017-1

OPENSUSE-SU-2021_1276-1

OPENSUSE-SU-2021_3017-1

OPENSUSE-SU-2024:11513-1

SUSE-SU-2021:3017-1

SUSE-SU-2021_3017-1

Affected Products

Alt Linux

Astra Linux

Suse

Wireshark

References · 201

• 🔥 https://gitlab.com/wireshark/wireshark/-/issues/17462 · Exploit
• https://cve.org/CVERecord?id=CVE-2021-22235 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-22235 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-22235 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-5019-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-22235 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2024:11513-1 · Vendor Advisory
• https://wireshark.org/security/wnpa-sec-2021-05.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-01849 · Security Note
• https://osv.dev/vulnerability/DLA-2849-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:3017-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-22235 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-22235 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-7407 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:3017-1 · Vendor Advisory