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CVE-2021-22222

Quick assessment

Affected
The Wireshark Foundation Wireshark
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wireshark（前称Ethereal）是Wireshark团队的一套网络数据包分析软件。该软件的功能是截取网络数据包，并显示出详细的数据以供分析。 Wireshark 3.4.0到3.4.5存在安全漏洞，该漏洞源于Wireshark 3.4.0到3.4.5允许通过包注入或手工捕获文件拒绝服务。

CVSS 7.5 · High EPSS 1.91% · P78
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I. Basic Information for CVE-2021-22222

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Infinite loop in DVB-S2-BB dissector in Wireshark 3.4.0 to 3.4.5 allows denial of service via packet injection or crafted capture file
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Wireshark安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wireshark（前称Ethereal）是Wireshark团队的一套网络数据包分析软件。该软件的功能是截取网络数据包，并显示出详细的数据以供分析。 Wireshark 3.4.0到3.4.5存在安全漏洞，该漏洞源于Wireshark 3.4.0到3.4.5允许通过包注入或手工捕获文件拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
The Wireshark Foundation Wireshark >=3.4.0, <3.4.6 -

II. Public POCs for CVE-2021-22222

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-22222

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Patches & Fixes for CVE-2021-22222 (1)

Vendor Advisories for CVE-2021-22222 (2)

Other References for CVE-2021-22222 (2)

IV. Related Vulnerabilities

Same product: Wireshark
Same vendor: The Wireshark Foundation

V. Comments for CVE-2021-22222

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