What is CVE-2018-18956?

CVE-2018-18956 is a high-severity vulnerability in Suricata-ids Suricata, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2018-11-05.

How severe is CVE-2018-18956?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Suricata-ids Suricata

CVE-2018-18956

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 2…

Vulnerability class: Buffer Overflow

EPSS: 0.028 (84.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Suricata-ids Suricata
N/a — versions n/a

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

cve@mitre.org (Mailing List, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (x_refsource_CONFIRM, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2018-18956?: CVE-2018-18956 is a high-severity vulnerability in Suricata-ids Suricata, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2018-11-05.
How severe is CVE-2018-18956?: High severity. CVSS v3 base score is 7.5 out of 10.