PT-2021-6887 · Wireshark+3 · Wireshark+3

Published 2021-12-13 · Updated 2024-09-30 · CVE-2021-4181

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 a crash in the Sysdig Event 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 Sysdig Event dissector until a patch is available. For Wireshark version 3.6.0, consider disabling the Sysdig Event 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

Special Elements Injection

Out of bounds Read

Weakness Enumeration

CWE-74

CWE-125

Related Identifiers

ALT-PU-2022-1005

ALT-PU-2022-1096

ALT-PU-2022-1368

ALT-PU-2022-1599

AZL-7417

BDU:2022-02439

CVE-2021-4181

DLA-2967-1

DLA-3906-1

MGASA-2022-0004

OESA-2022-1610

OPENSUSE-SU-2022:0375-1

OPENSUSE-SU-2022_0375-1

OPENSUSE-SU-2024:11703-1

SUSE-SU-2022:0375-1

SUSE-SU-2022_0375-1

Affected Products

Alt Linux

Astra Linux

Suse

Wireshark

References · 61

• 🔥 https://gitlab.com/wireshark/wireshark/-/merge_requests/5429 · Exploit
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-4181 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-4181 · Security Note
• https://wireshark.org/security/wnpa-sec-2021-21.html · Vendor Advisory
• https://advisories.mageia.org/MGASA-2022-0004.html · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2022:0375-1 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2022-0004 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-4181 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-22207 · Security Note
• https://osv.dev/vulnerability/AZL-7417 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-22191 · Security Note
• https://osv.dev/vulnerability/DLA-3906-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-02439 · Security Note