#VU15746 Segmentation fault in Suricata - CVE-2018-18956
Published: November 7, 2018
Vulnerability identifier: #VU15746
Vulnerability risk: High
CVSSv4.0: 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:A/U:Amber
CVE-ID: CVE-2018-18956
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
Suricata
Suricata
Software vendor:
Open Information Security Foundation
Open Information Security Foundation
Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to segmentation fault in the ProcessMimeEntity function in util-decode-mime.c when handling malicious input. A remote attacker can supply specially crafted input to the SMTP parser, trigger segfault and cause daemon crash.
Note: according to MITRE statement, the vulnerability has been exploited in the wild in November 2018.
The weakness exists due to segmentation fault in the ProcessMimeEntity function in util-decode-mime.c when handling malicious input. A remote attacker can supply specially crafted input to the SMTP parser, trigger segfault and cause daemon crash.
Note: according to MITRE statement, the vulnerability has been exploited in the wild in November 2018.
Remediation
Update to version 4.1.