CVE-2021-22235: High severity Wireshark Wireshark vulnerability

Published Jul 20, 2021
·
Updated

Crash in DNP dissector in Wireshark 3.4.0 to 3.4.6 and 3.2.0 to 3.2.14 allows denial of service via packet injection or crafted capture file

Affected Software

17 affected componentsFixes available
debian/wireshark
2.6.20-0+deb10u42.6.20-0+deb10u73.4.10-0+deb11u14.0.6-1~deb12u14.0.10-1
Wireshark Wireshark>=3.2.0<3.2.15
Wireshark Wireshark>=3.4.0<3.4.7
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Debian Debian Linux=11.0
alpine/wireshark>=3.2.0<3.4.7-r0
3.4.7-r0
alpine/wireshark>=3.2.0<3.4.7-r0
3.4.7-r0
alpine/wireshark>=3.2.0<3.4.7-r0
3.4.7-r0
alpine/wireshark>=3.2.0<3.4.7-r0
3.4.7-r0
alpine/wireshark>=3.2.0<3.4.7-r0
3.4.7-r0
alpine/wireshark>=3.2.0<3.4.7-r0
3.4.7-r0
alpine/wireshark>=3.2.0<3.4.7-r0
3.4.7-r0
alpine/wireshark>=3.2.0<3.4.7-r0
3.4.7-r0
alpine/wireshark>=3.2.0<3.4.7-r0
3.4.7-r0
alpine/wireshark>=3.2.0<3.4.7-r0
3.4.7-r0
alpine/wireshark>=3.2.0<3.4.7-r0
3.4.7-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/wireshark to a version that resolves this vulnerability.

    Fixed in 2.6.20-0+deb10u4Fixed in 2.6.20-0+deb10u7Fixed in 3.4.10-0+deb11u1Fixed in 4.0.6-1~deb12u1Fixed in 4.0.10-1
  2. Upgrade

    Upgrade alpine/wireshark to a version that resolves this vulnerability.

    Fixed in 3.4.7-r0

Event History

Jul 20, 2021
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·12:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·12:15 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is CVE-2021-22235?

CVE-2021-22235 is a vulnerability in Wireshark 3.4.0 to 3.4.6 and 3.2.0 to 3.2.14 that allows denial of service via packet injection or a crafted capture file.

2

How can the CVE-2021-22235 vulnerability impact my system?

The CVE-2021-22235 vulnerability can result in a crash in the DNP dissector in Wireshark, leading to a denial of service.

3

What is the severity of CVE-2021-22235?

The severity of CVE-2021-22235 is high with a severity value of 7.5.

4

Which versions of Wireshark are affected by CVE-2021-22235?

Wireshark versions 3.4.0 to 3.4.6 and 3.2.0 to 3.2.14 are affected by CVE-2021-22235.

5

How do I mitigate the CVE-2021-22235 vulnerability?

To mitigate the CVE-2021-22235 vulnerability, update Wireshark to version 3.4.10-0+deb11u1, 4.0.6-1~deb12u1, or 4.0.10-1.

Company

Resources

Contact

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