CVE-2019-11779

MEDIUMCVSS 6.5/10EPSS 2.74%

Last modified

CVE-2019-11779 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 2.74% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
2.74%

84.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
EclipseMosquitto>= 1.5, < 1.5.9—
EclipseMosquitto>= 1.6, < 1.6.6—
CanonicalUbuntu Linux19.04—
OpensuseBackports Sle15.0Sp1
OpensuseLeap15.1—
FedoraprojectFedora29—
FedoraprojectFedora30—
FedoraprojectFedora31—
DebianDebian Linux8.0—
DebianDebian Linux10.0—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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, i.e. the topic hierarchy separator, then a stack overflow will occur.
How severe is CVE-2019-11779?
CVE-2019-11779 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 2.74% probability of exploitation in the next 30 days.
How do I fix CVE-2019-11779?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2019

Are you affected by CVE-2019-11779?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST