CVE-2021-39923: high-severity vulnerability in Wireshark
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 1.6%
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Wireshark Foundation · WiresharkRelated CVEs — Wireshark
In the same product, most dangerous first.
References
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39923.jsonhttps://gitlab.com/wireshark/wireshark/-/issues/17684https://lists.debian.org/debian-lts-announce/2021/12/msg00015.htmlhttps://www.debian.org/security/2021/dsa-5019https://www.wireshark.org/security/wnpa-sec-2021-11.html