CVE-2021-39921

Name
CVE-2021-39921
Description
NULL pointer exception in the Modbus 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
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://www.wireshark.org/security/wnpa-sec-2021-14.html
MISC https://gitlab.com/wireshark/wireshark/-/issues/17703
CONFIRM https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39921.json

Match rules

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

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
wireshark edge-community 3.4.9-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark 3.14-community 3.4.8-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable