SB2017063035 - Resource exhaustion in mosquitto (Alpine package)
Published: June 30, 2017
Security Bulletin ID
SB2017063035
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2017-7651)
CWE-ID: CWE-400 - Resource exhaustion
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
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.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=1010882df397e3c8f889b1f5bc658e870d5f52a6
- https://git.alpinelinux.org/aports/commit/?id=9fd49ead7922a262370c74c063833035c26ef731
- https://git.alpinelinux.org/aports/commit/?id=f61baacc21feda8c0f7177144a4dd3ee81aa7735
- https://git.alpinelinux.org/aports/commit/?id=19539511a24c68d6a70c19ae7f30e6a11736caff
- https://git.alpinelinux.org/aports/commit/?id=73a38747e43d9c0420fe000dbb786b2c02b51698