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 2018.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.028 (85.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
Weakness classification (CWE)
References
- lists.openinfosecfoundation.org/pipermail/oisf-users/2018-October/016227.html (Mailing List, Third Party Advisory)
- redmine.openinfosecfoundation.org/issues/2658 (Third Party Advisory)
- lists.openinfosecfoundation.org/pipermail/oisf-users/2018-November/016316.html (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.