Debian update for fastnetmon



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2024-56072
CVE-2024-56073
CWE-ID CWE-20
CWE-369
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Debian Linux
Operating systems & Components / Operating system

fastnetmon (Debian package)
Operating systems & Components / Operating system package or component

Vendor Debian

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU102055

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-2024-56072

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in sFlow v5 plugin within the parse_sflow_v5_packet() function in src/sflow_plugin/sflow_collector.cpp. A remote attacker can send  specially crafted packet that specifies many sFlow samples and perform a denial of service (DoS) attack.

Mitigation

Update fastnetmon package to version 1.2.4-2+deb12u1.

Vulnerable software versions

Debian Linux: All versions

fastnetmon (Debian package): before 1.2.4-2+deb12u1

CPE2.3 External links

https://lists.debian.org/debian-security-announce/2024/msg00253.html


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) Division by zero

EUVDB-ID: #VU102047

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-2024-56073

CWE-ID: CWE-369 - Divide By Zero

Exploit availability: No

Description

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

The vulnerability exists due to a divide by zero error when handling zero-length templates for Netflow v9 within the process_netflow_v9_options_template() function in src/netflow_plugin/netflow_v9_collector.cpp. A remote attacker can perform a denial of service (DoS) attack.

Mitigation

Update fastnetmon package to version 1.2.4-2+deb12u1.

Vulnerable software versions

Debian Linux: All versions

fastnetmon (Debian package): before 1.2.4-2+deb12u1

CPE2.3 External links

https://lists.debian.org/debian-security-announce/2024/msg00253.html


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.



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