Out-of-bounds Write Affecting wireshark package, versions <2.6.5-1~ubuntu14.04.1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.35% (72nd percentile)

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  • Snyk IDSNYK-UBUNTU1404-WIRESHARK-375431
  • published29 Nov 2018
  • disclosed29 Nov 2018

Introduced: 29 Nov 2018

CVE-2018-19623  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Ubuntu:14.04 wireshark to version 2.6.5-1~ubuntu14.04.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream wireshark package and not the wireshark package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the LBMPDM dissector could crash. In addition, a remote attacker could write arbitrary data to any memory locations before the packet-scoped memory. This was addressed in epan/dissectors/packet-lbmpdm.c by disallowing certain negative values.