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CVE-2021-39922 Details

Description

Buffer overflow in the C12.22 dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39922.json	CVE	Third Party Advisory
https://gitlab.com/wireshark/wireshark/-/issues/17636	CVE	ExploitIssue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html	CVE	Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/	CVE
https://security.gentoo.org/glsa/202210-04	CVE	Third Party Advisory
https://www.debian.org/security/2021/dsa-5019	CVE	Third Party Advisory
https://www.wireshark.org/security/wnpa-sec-2021-12.html	CVE	Vendor Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39922.json	[email protected]	Third Party Advisory
https://gitlab.com/wireshark/wireshark/-/issues/17636	[email protected]	ExploitIssue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html	[email protected]	Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/	[email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/	[email protected]
https://security.gentoo.org/glsa/202210-04	[email protected]	Third Party Advisory
https://www.debian.org/security/2021/dsa-5019	[email protected]	Third Party Advisory
https://www.wireshark.org/security/wnpa-sec-2021-12.html	[email protected]	Vendor Advisory

see all 16 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-120	Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')	[email protected]

Affected Products

Product	Versions
wireshark wireshark	>= 3.2.0, <= 3.2.17 >= 3.4.0, <= 3.4.9
CPE cpe:2.3:a:wireshark:wireshark:::::::: Remediation No remediation found in references.
fedoraproject fedora	34 35
CPE cpe:2.3:o:fedoraproject:fedora:34:::::::* cpe:2.3:o:fedoraproject:fedora:35:::::::* Remediation No remediation found in references.
debian debian linux	9.0 10.0 11.0
CPE cpe:2.3:o:debian:debian_linux:9.0:::::::* cpe:2.3:o:debian:debian_linux:10.0:::::::* cpe:2.3:o:debian:debian_linux:11.0:::::::* Remediation No remediation found in references.

Change History

12 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Oct 28, 2022	Modified Analysis	[email protected]
Oct 16, 2022	CVE Modified	[email protected]
Mar 9, 2022	Modified Analysis	[email protected]
Dec 26, 2021	CVE Modified	[email protected]
Dec 15, 2021	Modified Analysis	[email protected]
Dec 11, 2021	CVE Modified	[email protected]
Dec 3, 2021	CVE Modified	[email protected]
Nov 24, 2021	Initial Analysis	[email protected]

CVE-2021-39922 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

Change History

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