CVE-2021-39923

Large loop in the PNRP 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
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 71%
Affected Products (NVD)
VendorProductVersion
wiresharkwireshark
3.2.0 ≤
𝑥
≤ 3.2.17
wiresharkwireshark
3.4.0 ≤
𝑥
≤ 3.4.9
debiandebian_linux
10.0
debiandebian_linux
11.0
debiandebian_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
wireshark
bookworm
4.0.11-1~deb12u1
fixed
bookworm (security)
4.0.11-1~deb12u1
fixed
bullseye
3.4.10-0+deb11u1
fixed
bullseye (security)
3.4.16-0+deb11u1
fixed
sid
4.4.1-1
fixed
trixie
4.4.0-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
wireshark
bionic
needs-triage
focal
needs-triage
hirsute
ignored
impish
ignored
jammy
needs-triage
kinetic
ignored
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
needs-triage
xenial
needs-triage
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
wireshark-cli
Amazon Linux 2023
1:4.0.2-1.amzn2023.0.2
fixed
wireshark-cli-debuginfo
Amazon Linux 2023
1:4.0.2-1.amzn2023.0.2
fixed
wireshark-debugsource
Amazon Linux 2023
1:4.0.2-1.amzn2023.0.2
fixed
wireshark-devel
Amazon Linux 2023
1:4.0.2-1.amzn2023.0.2
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
wireshark
CBL-Mariner 2.0
0:3.4.14-1.cm2
fixed
Common Weakness Enumeration
References
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39923.json
https://gitlab.com/wireshark/wireshark/-/issues/17684
https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html
https://www.debian.org/security/2021/dsa-5019
https://www.wireshark.org/security/wnpa-sec-2021-11.html
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39923.json
https://gitlab.com/wireshark/wireshark/-/issues/17684
https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html
https://www.debian.org/security/2021/dsa-5019
https://www.wireshark.org/security/wnpa-sec-2021-11.html