High severity7.5OSV Advisory· Published Nov 5, 2018· Updated Jun 17, 2026

CVE-2018-18956

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Oisf/SuricataOSV
Range: suricata-4.0.0, suricata-4.0.1, suricata-4.0.2, …
Suricata Ids/Suricata
cpe:2.3:a:suricata-ids:suricata:*:*:*:*:*:*:*:*
Range: >=4.0.0,<4.0.6
Suricata/Suricatallm-fuzzy
Range: <4.0.6

Patches

Vulnerability mechanics

References

lists.openinfosecfoundation.org/pipermail/oisf-users/2018-November/016316.htmlnvdMailing ListThird Party Advisory
lists.openinfosecfoundation.org/pipermail/oisf-users/2018-October/016227.htmlnvdMailing ListThird Party Advisory
redmine.openinfosecfoundation.org/issues/2658nvdThird Party Advisory

News mentions

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