CVE-2017-7652
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 1.6% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.6% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.6% · EPSS, next 30 days
- Weakness
- CWE-789
- Record status
- Modified
Affected
- Eclipse Mosquitto ≤ 1.4.14
- Debian Linux 7.0
- Debian Linux 8.0
- Debian Linux 9.0
Attack profile CVSS 3.0 · 7.5
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2017-7652.md and follow it. Check whether this project is affected by CVE-2017-7652. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/
- https://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/
References
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=530102
- https://lists.debian.org/debian-lts-announce/2018/03/msg00037.html
- https://lists.debian.org/debian-lts-announce/2018/06/msg00016.html
- https://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/
- https://www.debian.org/security/2018/dsa-4325
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=530102
- https://lists.debian.org/debian-lts-announce/2018/03/msg00037.html
- https://lists.debian.org/debian-lts-announce/2018/06/msg00016.html
- https://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/
- https://www.debian.org/security/2018/dsa-4325