DescriptionAn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
smplayer (PTS)buster18.10.0~ds0-1fixed
sid, trixie23.12.0+ds0-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
smplayersourcejessie(not affected)
smplayersourcestretch(not affected)


[stretch] - smplayer <not-affected> (Vulnerable code not present)
[jessie] - smplayer <not-affected> (Vulnerable code not present)
18.5.0~ds1-1 isn't fixed on the source level, but no longer builds the Chromecast support

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