Infinite loop in collectd - CVE-2017-7401
Published: May 24, 2017
Vulnerability identifier: #VU6706
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-7401
CWE-ID: CWE-399
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: collectd
Affected software:
collectd
collectd
Detailed vulnerability description
The vulnerability allows a remote attacker to cause denial of service (DoS) conditions.
The vulnerability exists due to improper input validation when processing UDP requests within the parse_packet() and parse_part_sign_sha256() functions in network.c.A remote attacker can send specially crafted UDP packets to vulnerable instance of collectd and trigger infinite loop.
Successful exploitation of the vulnerability may allow an attacker to cause denial of service (DoS) conditions, but requires that collectd is configured with "SecurityLevel None" and with empty "AuthFile" options.
The vulnerability exists due to improper input validation when processing UDP requests within the parse_packet() and parse_part_sign_sha256() functions in network.c.A remote attacker can send specially crafted UDP packets to vulnerable instance of collectd and trigger infinite loop.
Successful exploitation of the vulnerability may allow an attacker to cause denial of service (DoS) conditions, but requires that collectd is configured with "SecurityLevel None" and with empty "AuthFile" options.
How to mitigate CVE-2017-7401
Install update from vendor's repository.