Uncontrolled Memory Allocation Affecting mosquitto package, versions <1.4.15-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE311-MOSQUITTO-546300
- published25 Apr 2018
- disclosed25 Apr 2018
Introduced: 25 Apr 2018
CVE-2017-7652 (opens in a new tab)How to fix?
Upgrade Alpine:3.11 mosquitto to version 1.4.15-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mosquitto package and not the mosquitto package as distributed by Alpine.
See How to fix? for Alpine:3.11 relevant fixed versions and status.
In Eclipse Mosquitto 1.4.14, if a Mosquitto instance is set running with a configuration file, then sending a HUP signal to server triggers the configuration to be reloaded from disk. If there are lots of clients connected so that there are no more file descriptors/sockets available (default limit typically 1024 file descriptors on Linux), then opening the configuration file will fail.
References
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=530102
- https://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7652
- https://www.debian.org/security/2018/dsa-4325
- https://lists.debian.org/debian-lts-announce/2018/03/msg00037.html
- https://lists.debian.org/debian-lts-announce/2018/06/msg00016.html
- https://security-tracker.debian.org/tracker/CVE-2017-7652
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-7652