Multiple vulnerabilities in Eclipse Mosquitto



Published: 2019-03-27 | Updated: 2023-10-06
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2017-7655
CVE-2017-7654
CVE-2017-7653
CWE-ID CWE-476
CWE-401
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Eclipse Mosquitto
Server applications / Other server solutions

Vendor Eclipse

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU18088

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-7655

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in lib/messages_mosq.c. A remote attacker can perform a denial of service (DoS) attack against the application, using the vulnerable library.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Eclipse Mosquitto: 1.0 - 1.4.15

External links

http://bugs.eclipse.org/bugs/show_bug.cgi?id=533775


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.

2) Memory leak

EUVDB-ID: #VU81666

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-2017-7654

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak. A remote attacker can send specially crafted CONNECT packets to force the application to leak memory and perform denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Eclipse Mosquitto: 1.0 - 1.4.15

External links

http://bugs.eclipse.org/bugs/show_bug.cgi?id=533493
http://lists.debian.org/debian-lts-announce/2018/09/msg00036.html
http://usn.ubuntu.com/4023-1/
http://www.debian.org/security/2018/dsa-4325


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.

3) Input validation error

EUVDB-ID: #VU81667

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-7653

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of not valid UTF-8 string. A remote user can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Eclipse Mosquitto: 1.0 - 1.4.15

External links

http://docs.oasis-open.org/mqtt/disallowed-chars/v1.0/disallowed-chars-v1.0.pdf
http://bugs.eclipse.org/bugs/show_bug.cgi?id=532113
http://lists.debian.org/debian-lts-announce/2018/09/msg00036.html
http://usn.ubuntu.com/4023-1/
http://www.debian.org/security/2018/dsa-4325


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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