Vulnerability Details : 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 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.
Products affected by CVE-2017-7652
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-7652
0.94%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 74 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-7652
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.0
|
MEDIUM | AV:N/AC:M/Au:S/C:P/I:P/A:P |
6.8
|
6.4
|
NIST | |
7.5
|
HIGH | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.6
|
5.9
|
NIST |
CWE ids for CVE-2017-7652
-
The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.Assigned by: emo@eclipse.org (Secondary)
References for CVE-2017-7652
-
https://lists.debian.org/debian-lts-announce/2018/06/msg00016.html
[SECURITY] [DLA 1409-1] mosquitto security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2018/03/msg00037.html
[SECURITY] [DLA 1334-1] mosquitto security updateMailing List;Third Party Advisory
-
https://bugs.eclipse.org/bugs/show_bug.cgi?id=530102
530102 – (CVE-2017-7652) Reloading Mosquitto configuration may fail if no file descriptors are availableIssue Tracking;Third Party Advisory
-
https://www.debian.org/security/2018/dsa-4325
Debian -- Security Information -- DSA-4325-1 mosquittoThird Party Advisory
-
https://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/
Security advisory: CVE-2017-7651, CVE-2017-7652 | Eclipse MosquittoPatch;Vendor Advisory
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