CVE-2017-17997

Publication date 30 December 2017

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

In Wireshark before 2.2.12, the MRDISC dissector misuses a NULL pointer and crashes. This was addressed in epan/dissectors/packet-mrdisc.c by validating an IPv4 address. This vulnerability is similar to CVE-2017-9343.

Status

Package Ubuntu Release Status
wireshark 18.04 LTS bionic
Fixed 2.6.3-1~ubuntu18.04.1
17.10 artful
Not affected
17.04 zesty Ignored end of life
16.04 LTS xenial
Fixed 2.6.3-1~ubuntu16.04.1
14.04 LTS trusty
Fixed 2.6.3-1~ubuntu14.04.1

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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Other references