Vulnerability Details CVE-2021-39921
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
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 33.9%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39921.json
- https://gitlab.com/wireshark/wireshark/-/issues/17703
- https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/
- https://security.gentoo.org/glsa/202210-04
- https://www.debian.org/security/2021/dsa-5019
- https://www.wireshark.org/security/wnpa-sec-2021-14.html
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39921.json
- https://gitlab.com/wireshark/wireshark/-/issues/17703
- https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/
- https://security.gentoo.org/glsa/202210-04
- https://www.debian.org/security/2021/dsa-5019
- https://www.wireshark.org/security/wnpa-sec-2021-14.html
Products affected by CVE-2021-39921
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cpe:2.3:a:wireshark:wireshark:3.2.0
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cpe:2.3:a:wireshark:wireshark:3.2.1
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cpe:2.3:a:wireshark:wireshark:3.2.10
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cpe:2.3:a:wireshark:wireshark:3.2.11
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cpe:2.3:a:wireshark:wireshark:3.2.12
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cpe:2.3:a:wireshark:wireshark:3.2.13
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cpe:2.3:a:wireshark:wireshark:3.2.14
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cpe:2.3:a:wireshark:wireshark:3.2.15
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cpe:2.3:a:wireshark:wireshark:3.2.16
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cpe:2.3:a:wireshark:wireshark:3.2.17
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cpe:2.3:a:wireshark:wireshark:3.2.2
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cpe:2.3:a:wireshark:wireshark:3.2.3
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cpe:2.3:a:wireshark:wireshark:3.2.4
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cpe:2.3:a:wireshark:wireshark:3.2.5
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cpe:2.3:a:wireshark:wireshark:3.2.6
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cpe:2.3:a:wireshark:wireshark:3.2.7
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cpe:2.3:a:wireshark:wireshark:3.2.8
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cpe:2.3:a:wireshark:wireshark:3.2.9
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cpe:2.3:a:wireshark:wireshark:3.4.0
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cpe:2.3:a:wireshark:wireshark:3.4.1
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cpe:2.3:a:wireshark:wireshark:3.4.2
-
cpe:2.3:a:wireshark:wireshark:3.4.3
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cpe:2.3:a:wireshark:wireshark:3.4.4
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cpe:2.3:a:wireshark:wireshark:3.4.5
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cpe:2.3:a:wireshark:wireshark:3.4.6
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cpe:2.3:a:wireshark:wireshark:3.4.7
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cpe:2.3:a:wireshark:wireshark:3.4.8
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cpe:2.3:a:wireshark:wireshark:3.4.9
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cpe:2.3:o:debian:debian_linux:9.0
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cpe:2.3:o:fedoraproject:fedora:34
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cpe:2.3:o:fedoraproject:fedora:35