CVE-2021-39923

Name

CVE-2021-39923

Description

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

NVD Severity

medium

Other trackers

CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia

Mailing lists

oss-security, full-disclosure, bugtraq

Exploits

Exploit DB, Metasploit

Forges

GitHub (code, issues), Aports (code, issues)

References

Type	URI
CONFIRM	https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39923.json
MISC	https://gitlab.com/wireshark/wireshark/-/issues/17705
MISC	https://www.wireshark.org/security/wnpa-sec-2021-15.html
Vendor Advisory	https://www.wireshark.org/security/wnpa-sec-2021-11.html
Issue Tracking	https://gitlab.com/wireshark/wireshark/-/issues/17684
Third Party Advisory	https://www.debian.org/security/2021/dsa-5019
MLIST	https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html

Match rules

CPE URI	Source package	Min version	Max version
`cpe:2.3:a:wireshark:wireshark::::::::`	wireshark	>= 3.4.0	<= 3.4.9
`cpe:2.3:a:wireshark:wireshark::::::::`	wireshark	>= 3.2.0	<= 3.2.17

Vulnerable and fixed packages

Source package	Branch	Version	Maintainer	Status
wireshark	3.14-community	3.4.8-r0	Natanael Copa <ncopa@alpinelinux.org>	possibly vulnerable