CVE-2021-39921

HIGH

7.5

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

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published11/19/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

debian:debian_linuxfedoraproject:fedorawireshark:wireshark

Weaknesses (CWE)

CWE-476

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39921.json(cve@gitlab.com)

https://gitlab.com/wireshark/wireshark/-/issues/17703(cve@gitlab.com)

https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html(cve@gitlab.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/(cve@gitlab.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/(cve@gitlab.com)

https://security.gentoo.org/glsa/202210-04(cve@gitlab.com)

https://www.debian.org/security/2021/dsa-5019(cve@gitlab.com)

https://www.wireshark.org/security/wnpa-sec-2021-14.html(cve@gitlab.com)

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39921.json(af854a3a-2127-422b-91ae-364da2661108)

https://gitlab.com/wireshark/wireshark/-/issues/17703(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/202210-04(af854a3a-2127-422b-91ae-364da2661108)

https://www.debian.org/security/2021/dsa-5019(af854a3a-2127-422b-91ae-364da2661108)

https://www.wireshark.org/security/wnpa-sec-2021-14.html(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.