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CVE-2018-18764

Published: 29 October 2018

An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in a parse_mqtt getu16 call. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.

Priority

Medium

Cvss 3 Severity Score

9.1

Score breakdown

Status

Package Release Status
smplayer
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Not vulnerable
(19.10.2~ds0-1build1)
groovy Not vulnerable

trusty Does not exist

upstream
Released (18.5.0~ds1-1)
xenial Not vulnerable
(code not present)
hirsute Not vulnerable

impish Not vulnerable

jammy Not vulnerable

kinetic Not vulnerable

lunar Not vulnerable

mantic Not vulnerable

Severity score breakdown

Parameter Value
Base score 9.1
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H