CVE-2018-18764

mongoose: heap-based buffer over-read in a parse_mqtt getu16 call

Published 29 Oct 2018Modified 17 Jun 2026CWE 125

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.1CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Red Hat4.4CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (low).

Description

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.

Affected packages and fixed versions

Source	Package	Fixed in
debian 11	smplayer	18.5.0~ds1-1
debian 12	smplayer	18.5.0~ds1-1
debian 13	smplayer	18.5.0~ds1-1
debian 14	smplayer	18.5.0~ds1-1
echo	smplayer	18.5.0~ds1-1

References

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