| Name | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| suricata (PTS) | jessie, jessie (lts) | 2.0.7-2+deb8u5 | fixed |
| stretch | 3.2.1-1+deb9u1 | vulnerable |
| buster, buster (lts) | 1:4.1.2-2+deb10u2 | fixed |
| bullseye | 1:6.0.1-3 | fixed |
| bookworm | 1:6.0.10-1 | fixed |
| sid, trixie | 1:7.0.7-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| suricata | source | wheezy | (not affected) | | | |
| suricata | source | jessie | (not affected) | | | |
| suricata | source | (unstable) | 1:4.0.6-1 | | | |
Notes
[stretch] - suricata <no-dsa> (Minor issue)
[jessie] - suricata <not-affected> (Vulnerable code not present, no MIME support in this version)
https://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-October/016227.html
https://redmine.openinfosecfoundation.org/issues/2658#change-10374
[wheezy] - suricata <not-affected> (Vulnerable code not present)