Resource exhaustion in mosquitto (Alpine package)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2017-7651 |
| CWE-ID | CWE-400 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
mosquitto (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Resource exhaustion
EUVDB-ID: #VU33230
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-7651
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe 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.
MitigationInstall update from vendor's website.
Vulnerable software versionsmosquitto (Alpine package): 1.4.12-r0 - 1.4.14-r5
External linkshttp://git.alpinelinux.org/aports/commit/?id=1010882df397e3c8f889b1f5bc658e870d5f52a6
http://git.alpinelinux.org/aports/commit/?id=9fd49ead7922a262370c74c063833035c26ef731
http://git.alpinelinux.org/aports/commit/?id=f61baacc21feda8c0f7177144a4dd3ee81aa7735
http://git.alpinelinux.org/aports/commit/?id=19539511a24c68d6a70c19ae7f30e6a11736caff
http://git.alpinelinux.org/aports/commit/?id=73a38747e43d9c0420fe000dbb786b2c02b51698
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
