Medium severity · published Sep 19, 2019
CVE-2019-11779
In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters,…
6.5
CVSS
2.7%
EPSS
No
On KEV
Description
In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters, i.e. the topic hierarchy separator, then a stack overflow will occur.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.7% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BS
Backports Sle · Opensuse
15.0 · source: NVD
DL
Debian Linux · Debian
8.0; 10.0 · source: NVD
FE
Fedora · Fedoraproject
29; 30; 31 · source: NVD
LE
Leap · Opensuse
15.1 · source: NVD
MO
Mosquitto · Eclipse
1.5 before 1.5.9; 1.6 before 1.6.6 · source: NVD
UL
Ubuntu Linux · Canonical
19.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-11779
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-11779
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00077.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00008.html
Vendor Advisory
https://bugs.eclipse.org/bugs/show_bug.cgi?id=551160
Mailing List
https://lists.debian.org/debian-lts-announce/2019/10/msg00035.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D4WMHIM64Q35NGTR6R3ILZUL4MA4ANB5/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HFWQBNFTAVHPUYNGYO2TCPF5PCSWC2Z7/
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