CVE-2017-7652: debian debian_linux
Vulnerability summary
CVE-2017-7652 is a high (CVSS 7.5) vulnerability in debian debian_linux. EPSS estimates a 1.62% chance of exploitation in the next 30 days, higher than 75.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 3Timeline
- 25-04-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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 metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.62%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
-0.03 pp
From 1.65% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- mosquitto< 1.4.15-1
- debian_linuxEOL7.0 | 8.0 | 9.0
Alpine1 product
- mosquitto≥ 1.0, < 1.4.15-r0
Eclipse1 product
- mosquitto≥ 1.0, ≤ 1.4.14
The eclipse foundation1 product
- eclipse mosquitto1.4.14
Ubuntu1 product
- mosquitto< 0.15-2+deb7u3ubuntu0.1 | < 1.4.8-1ubuntu0.16.04.4
5 vendors · 6 products
References
10 links- lists.debian.org/debian-lts-announce/2018/03/msg00037.htmlMailing ListX Refsource MLISTThird Party Advisory
- mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/X Refsource CONFIRMPatchVendor Advisory
- lists.debian.org/debian-lts-announce/2018/06/msg00016.htmlMailing ListX Refsource MLISTThird Party Advisory