CVE-2021-39922
HIGHWireshark 3.2.0-3.2.17 and 3.4.0-3.4.9 - Denial of Service via C12.22 Dissector Buffer Overflow
Title source: llmDescription
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
References (8)
Core 8
Core References
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/
Mailing List, Third Party Advisory vendor-advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/
Third Party Advisory vendor-advisory
https://www.debian.org/security/2021/dsa-5019
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202210-04
Third Party Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39922.json
Exploit, Issue Tracking, Patch, Third Party Advisory
https://gitlab.com/wireshark/wireshark/-/issues/17636
Vendor Advisory
https://www.wireshark.org/security/wnpa-sec-2021-12.html
Scores
CVSS v3
7.5
EPSS
0.0518
EPSS Percentile
91.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-120
Status
published
Products (6)
debian/debian_linux
9.0
debian/debian_linux
10.0
debian/debian_linux
11.0
fedoraproject/fedora
34
fedoraproject/fedora
35
wireshark/wireshark
3.2.0 - 3.2.17
Published
Nov 19, 2021
Tracked Since
Feb 18, 2026