CVE-2023-5632 — Excessive Iteration in Mosquitto

CWE-834 — Excessive Iteration6 documents6 sources
Severity
7.5HIGHNVD
EPSS
0.1%
top 74.41%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Eclipse Mosquitto
Timeline
PublishedOct 18

Description

In Eclipse Mosquito before and including 2.0.5, establishing a connection to the mosquitto server without sending data causes the EPOLLOUT event to be added, which results excessive CPU consumption. This could be used by a malicious actor to perform denial of service type attack. This issue is fixed in 2.0.6

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶Debianeclipse/mosquitto< 2.0.7-1+3
▶CVEListV5eclipse/mosquitto2.0.5

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
CVEList
Unconditionally adding an event to the epoll causes excessive CPU consumption↗2023-10-18
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GHSA
GHSA-4jhw-x435-x5f7: In Eclipse Mosquito before and including 2↗2023-10-18
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OSV
CVE-2023-5632: In Eclipse Mosquito before and including 2↗2023-10-18
▶

📋Vendor Advisories

2
Red Hat
Mosquitto: Possible Denial of Service due to excessive CPE consumption↗2023-10-18
▶
Debian
CVE-2023-5632: mosquitto - In Eclipse Mosquito before and including 2.0.5, establishing a connection to the...↗2023
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CVE-2023-5632 — Excessive Iteration in Mosquitto | cvebase