PT-2021-6886 · Wireshark+3 · Wireshark+3

Published 2021-11-29 · Updated 2024-09-30 · CVE-2021-4184

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 3.4.0 through 3.4.10 Wireshark version 3.6.0

Description The issue is related to an infinite loop in the BitTorrent DHT dissector, which can be exploited to cause a denial of service via packet injection or crafted capture file. This can be achieved by sending specially crafted packets, allowing a remote attacker to disrupt the service.

Recommendations For Wireshark versions 3.4.0 through 3.4.10, consider disabling the BitTorrent DHT dissector until a patch is available. For Wireshark version 3.6.0, consider disabling the BitTorrent DHT dissector until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

ALT-PU-2022-1005

ALT-PU-2022-1096

ALT-PU-2022-1368

ALT-PU-2022-1599

AZL-7419

BDU:2022-02438

CVE-2021-4184

DLA-2967-1

DLA-3906-1

MGASA-2022-0004

OPENSUSE-SU-2022:0375-1

OPENSUSE-SU-2022_0375-1

OPENSUSE-SU-2024:11703-1

SUSE-SU-2022:0375-1

Affected Products

Alt Linux

Astra Linux

Suse

Wireshark

References · 56

• 🔥 https://gitlab.com/wireshark/wireshark/-/issues/17754 · Exploit
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-4184 · Security Note
• https://ubuntu.com/security/CVE-2021-4184 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-4184 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2022-0004.html · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2022:0375-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-02438 · Security Note
• https://osv.dev/vulnerability/MGASA-2022-0004 · Vendor Advisory
• https://security.gentoo.org/glsa/202210-04 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-7419 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-4184 · Security Note
• https://wireshark.org/security/wnpa-sec-2021-18.html · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-4184 · Vendor Advisory