Vulnerability identifier: #VU15746
Vulnerability risk: High
CVSSv3.1: 7.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Suricata
Server applications /
IDS/IPS systems, Firewalls and proxy servers
Vendor: 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.
Mitigation
Update to version 4.1.
Vulnerable software versions
Suricata: 4.0.0 - 4.0.5
External links
http://suricata-ids.org/2018/11/06/suricata-4-1-released/
http://github.com/OISF/suricata/commit/36e84b929cb37bd03943ed14749a4fef3ff1f61d
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?
Yes. This vulnerability is being exploited in the wild.