Vulnerability Details : CVE-2017-7651
Potential exploit
In Eclipse Mosquitto 1.4.14, a user can shutdown the Mosquitto server simply by filling the RAM memory with a lot of connections with large payload. This can be done without authentications if occur in connection phase of MQTT protocol.
Products affected by CVE-2017-7651
- 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-2017-7651
0.31%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 69 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-7651
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-7651
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: nvd@nist.gov (Primary)
-
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-2017-7651
-
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://www.debian.org/security/2018/dsa-4325
Debian -- Security Information -- DSA-4325-1 mosquittoThird Party Advisory
-
https://bugs.eclipse.org/bugs/show_bug.cgi?id=529754
529754 – (CVE-2017-7651) Mosquitto Server Shutdown AttackExploit;Issue Tracking;Third Party Advisory
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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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