Vulnerability Details : 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 category: OverflowDenial of service
Products affected by CVE-2018-18956
- cpe:2.3:a:suricata-ids:suricata:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-18956
1.21%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 78 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-18956
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-18956
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-18956
-
https://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-November/016316.html
[Oisf-users] Suricata 4.0.6 availableMailing List;Third Party Advisory
-
https://redmine.openinfosecfoundation.org/issues/2658#change-10374
Bug #2658: smtp segmentation fault (4.0.x) - Suricata - Open Information Security FoundationThird Party Advisory
-
https://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-October/016227.html
[Oisf-users] Suffering Simultaneous Suricata SegfaultsMailing List;Third Party Advisory
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