CVE-2020-25862

Publication date 6 October 2020

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
wireshark	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Fixed 3.2.3-1ubuntu0.1~esm1 Ubuntu Pro
	18.04 LTS bionic	Fixed 2.6.10-1~ubuntu18.04.0+esm1 Ubuntu Pro
	16.04 LTS xenial	Fixed 2.6.10-1~ubuntu16.04.0+esm1 Ubuntu Pro
	14.04 LTS trusty	Fixed 2.6.10-1~ubuntu14.04.0~esm2 Ubuntu Pro

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Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-6262-1
Wireshark vulnerabilities
31 July 2023