CVE-2017-17997

HIGH

Wireshark < 2.2.12 - Denial of Service via MRDISC Dissector NULL Pointer Dereference

Title source: llm
STIX 2.1

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.

References (5)

Core 5
Core References
Issue Tracking, Patch, Vendor Advisory x_refsource_misc
https://code.wireshark.org/review/#/c/25063/
Issue Tracking, Patch, Vendor Advisory x_refsource_misc
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14299
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html

Scores

CVSS v3 7.5
EPSS 0.0070
EPSS Percentile 72.3%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (2)
debian/debian_linux 8.0
wireshark/wireshark < 2.2.11
Published Dec 30, 2017
Tracked Since Feb 18, 2026