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Status published
High
CVE-2020-25862
In Wireshark 3.2.0 to 3.2.6, 3.0.0 to 3.0.13, and 2.6.0...
Vulnerability Description
In Wireshark 3.2.0 to 3.2.6, 3.0.0 to 3.0.13, and 2.6.0 to 2.6.20, the TCP dissector could crash. This was addressed in epan/dissectors/packet-tcp.c by changing the handling of the invalid 0xFFFF checksum.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://www.wireshark.org/security/wnpa-sec-2020-12.html
- https://gitlab.com/wireshark/wireshark/-/issues/16816
- https://gitlab.com/wireshark/wireshark/-/commit/7f3fe6164a68b76d9988c4253b24d43f498f1753
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IGRYKW4XLR44YDWTAH547ODYYBYPB2D/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DQHPKZFQ7W3X34RYN3FWFYCFJD4FXJW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZUHMK5HYTUUDXA64T2TAMAFMYV674QBW/
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00035.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00038.html
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://lists.debian.org/debian-lts-announce/2021/02/msg00008.html
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Affected Vendor
wireshark
View all reports →Affected Software
wireshark, fedora, leap, debian linux, zfs storage appliance firmware
Vulnerable Versions:
2.6.0, 3.0.0, 3.2.0, 31, 32, 33, 15.1, 15.2, 9.0, 8.8
Timeline
Official Publish:
October 6th, 2020
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.