High severity · published Apr 25, 2018
CVE-2017-7652
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…
7.5
CVSS
1.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
7.0; 8.0; 9.0 · source: NVD
MO
Mosquitto · Eclipse
1.0 through 1.4.14 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-7652
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-7652
Issue Tracking
https://bugs.eclipse.org/bugs/show_bug.cgi?id=530102
Mailing List
https://lists.debian.org/debian-lts-announce/2018/03/msg00037.html
Mailing List
https://lists.debian.org/debian-lts-announce/2018/06/msg00016.html
Patch
https://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/
Third Party Advisory
https://www.debian.org/security/2018/dsa-4325
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