CVE-2018-11356

HIGH

Wireshark 2.2.0-2.2.14 and 2.4.0-2.4.6 - Denial of Service via DNS SRV Record NULL Pointer Dereference

Title source: llm
STIX 2.1

Description

In Wireshark 2.6.0, 2.4.0 to 2.4.6, and 2.2.0 to 2.2.14, the DNS dissector could crash. This was addressed in epan/dissectors/packet-dns.c by avoiding a NULL pointer dereference for an empty name in an SRV record.

References (7)

Core 7
Core References
Vendor Advisory x_refsource_confirm
https://www.wireshark.org/security/wnpa-sec-2018-29.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/104308
Issue Tracking, Vendor Advisory x_refsource_confirm
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14681
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1041036

Scores

CVSS v3 7.5
EPSS 0.0118
EPSS Percentile 79.0%
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 (3)
debian/debian_linux 8.0
wireshark/wireshark 2.6.0
wireshark/wireshark 2.2.0 - 2.2.14
Published May 22, 2018
Tracked Since Feb 18, 2026