CVE-2018-14340 Information

Description

In Wireshark 2.6.0 to 2.6.1 2.4.0 to 2.4.7 and 2.2.0 to 2.2.15 dissectors that support zlib decompression could crash. This was addressed in epan/tvbuff_zlib.c by rejecting negative lengths to avoid a buffer over-read.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html http://www.securityfocus.com/bid/104847 http://www.securitytracker.com/id/1041608 https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14675 https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=672d882a53f96730e4ef1e5b1639c585823b0df8 https://lists.debian.org/debian-lts-announce/2018/07/msg00045.html https://www.wireshark.org/security/wnpa-sec-2018-36.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5