Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2020-25862

Improper Validation of Integrity Check Value

Published: Oct 06, 2020 | Modified: Nov 21, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2020-25862
CWEhttps://cwe.mitre.org/data/definitions/354.html

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.

Weakness

The product does not validate or incorrectly validates the integrity check values or “checksums” of a message. This may prevent it from detecting if the data has been modified or corrupted in transmission.

Affected Software

NameVendorStart VersionEnd Version
WiresharkWireshark2.6.0 (including)2.6.20 (including)
WiresharkWireshark3.0.0 (including)3.0.13 (including)
WiresharkWireshark3.2.0 (including)3.2.6 (including)
WiresharkUbuntubionic*
WiresharkUbuntuesm-apps/bionic*
WiresharkUbuntuesm-apps/focal*
WiresharkUbuntuesm-apps/xenial*
WiresharkUbuntuesm-infra-legacy/trusty*
WiresharkUbuntufocal*
WiresharkUbuntutrusty*
WiresharkUbuntutrusty/esm*
WiresharkUbuntuupstream*
WiresharkUbuntuxenial*

Potential Mitigations

References

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