Vulnerability Description
The ProcessMimeEntity function in util-decode-mime.c in Suricata 4.x before 4.0.6 allows remote attackers to cause a denial of service (segfault and daemon crash) via crafted input to the SMTP parser, as exploited in the wild in November 2018.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Suricata-Ids | Suricata | >= 4.0.0, < 4.0.6 |
Related Weaknesses (CWE)
References
- https://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-November/01631Mailing ListThird Party Advisory
- https://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-October/016227Mailing ListThird Party Advisory
- https://redmine.openinfosecfoundation.org/issues/2658#change-10374Third Party Advisory
- https://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-November/01631Mailing ListThird Party Advisory
- https://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-October/016227Mailing ListThird Party Advisory
- https://redmine.openinfosecfoundation.org/issues/2658#change-10374Third Party Advisory
FAQ
What is CVE-2018-18956?
CVE-2018-18956 is a vulnerability with a CVSS score of 7.5 (HIGH). The ProcessMimeEntity function in util-decode-mime.c in Suricata 4.x before 4.0.6 allows remote attackers to cause a denial of service (segfault and daemon crash) via crafted input to the SMTP parser,...
How severe is CVE-2018-18956?
CVE-2018-18956 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-18956?
Check the references section above for vendor advisories and patch information. Affected products include: Suricata-Ids Suricata.