Gentoo update for Eclipse Mosquitto



Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-0809
CVE-2023-3592
CVE-2023-28366
CWE-ID CWE-400
CWE-401
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Gentoo Linux
Operating systems & Components / Operating system

app-misc/mosquitto
Operating systems & Components / Operating system package or component

Vendor Gentoo

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU79937

Risk: Medium

CVSSv4.0: 6.6 [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]

CVE-ID: CVE-2023-0809

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can send malicious initial packets that are not CONNECT packets, trigger memory exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages.
app-misc/mosquitto to version: 2.0.17

Vulnerable software versions

Gentoo Linux: All versions

app-misc/mosquitto: before 2.0.17

CPE2.3 External links

https://security.gentoo.org/glsa/202401-09


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: #VU79938

Risk: Medium

CVSSv4.0: 6.6 [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]

CVE-ID: CVE-2023-3592

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 when processing v5 CONNECT packets. A remote attacker can force the application to leak memory by sending messages with invalid property types.

Mitigation

Update the affected packages.
app-misc/mosquitto to version: 2.0.17

Vulnerable software versions

Gentoo Linux: All versions

app-misc/mosquitto: before 2.0.17

CPE2.3 External links

https://security.gentoo.org/glsa/202401-09


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) Memory leak

EUVDB-ID: #VU79936

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-28366

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

Exploit availability: No

Description

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

The vulnerability exists due memory leak in broker. A remote client can send multiple QoS 2 messages with the same message ID, but then never respond to the PUBREC commands, which results in memory leak and denial of service condition.

Mitigation

Update the affected packages.
app-misc/mosquitto to version: 2.0.17

Vulnerable software versions

Gentoo Linux: All versions

app-misc/mosquitto: before 2.0.17

CPE2.3 External links

https://security.gentoo.org/glsa/202401-09


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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