CVE-2018-18956
published 2018-11-05CVE-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…
PriorityP271high7.5CVSS 3.0
AVNACLPRNUINSUCNINAH
ITWVulnCheck KEV
Exploited in the wild
EPSS
2.79%
84.6th percentile
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.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | suricata | < suricata 1:4.0.6-1 (bookworm) | suricata 1:4.0.6-1 (bookworm) |
| oisf | suricata | >= 0 < 1:4.0.6-1 | 1:4.0.6-1 |
| oisf | suricata | >= 0 < 1:4.0.6-1 | 1:4.0.6-1 |
| oisf | suricata | >= 0 < 1:4.0.6-1 | 1:4.0.6-1 |
| oisf | suricata | >= 0 < 1:4.0.6-1 | 1:4.0.6-1 |
| suricata-ids | suricata | >= 4.0.0 < 4.0.6 | 4.0.6 |
Detection & IOCsextracted from sources · hover to see the quote
- →The vulnerability is triggered via crafted input to Suricata's SMTP parser, specifically in the ProcessMimeEntity function in util-decode-mime.c. Monitor for Suricata segfaults/daemon crashes when processing SMTP traffic as an indicator of exploitation attempts. ↗
- →This vulnerability was exploited in the wild in November 2018. Suricata 4.x through 4.0.5 are affected; upgrade to 4.0.6 or later to remediate. ↗
- ·The attack vector is SMTP traffic parsed by Suricata; ensure SMTP inspection is enabled in Suricata configuration to be exposed to this vulnerability. ↗
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vulncheck7.5HIGH
vendor_debian7.5HIGH
CVEs like this are exactly what “Exploited This Week” covers.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-mhv4-xgrg-gg58: The ProcessMimeEntity function in util-decode-mime
ghsa_unreviewed·2022-05-13
CVE-2018-18956 [HIGH] CWE-119 GHSA-mhv4-xgrg-gg58: The ProcessMimeEntity function in util-decode-mime
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.
OSV
CVE-2018-18956: The ProcessMimeEntity function in util-decode-mime
osv·2018-11-05·CVSS 7.5
CVE-2018-18956 [HIGH] CVE-2018-18956: The ProcessMimeEntity function in util-decode-mime
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.
VulnCheck
suricata-ids suricata Improper Restriction of Operations within the Bounds of a Memory Buffer
vulncheck·2018·CVSS 7.5
CVE-2018-18956 [HIGH] suricata-ids suricata Improper Restriction of Operations within the Bounds of a Memory Buffer
suricata-ids suricata Improper Restriction of Operations within the Bounds of a Memory Buffer
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.
Affected: suricata-ids suricata
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://nvd.nist.gov/vuln/detail/CVE-2018-18956; https://www.cve.org/CVERecord?id=CVE-2018-18956
Debian
CVE-2018-18956: suricata - The ProcessMimeEntity function in util-decode-mime.c in Suricata 4.x before 4.0....
vendor_debian·2018·CVSS 7.5
CVE-2018-18956 [HIGH] CVE-2018-18956: suricata - The ProcessMimeEntity function in util-decode-mime.c in Suricata 4.x before 4.0....
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.
Scope: local
bookworm: resolved (fixed in 1:4.0.6-1)
bullseye: resolved (fixed in 1:4.0.6-1)
forky: resolved (fixed in 1:4.0.6-1)
sid: resolved (fixed in 1:4.0.6-1)
trixie: resolved (fixed in 1:4.0.6-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-18956 suricata: Segmentation fault in the ProcessMimeEntity function [fedora-all]
bugzilla·2018-11-06·CVSS 7.5
CVE-2018-18956 [HIGH] CVE-2018-18956 suricata: Segmentation fault in the ProcessMimeEntity function [fedora-all]
CVE-2018-18956 suricata: Segmentation fault in the ProcessMimeEntity function [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple suppo
Bugzilla
CVE-2018-18956 suricata: Segmentation fault in the ProcessMimeEntity function
bugzilla·2018-11-06·CVSS 7.5
CVE-2018-18956 [HIGH] CVE-2018-18956 suricata: Segmentation fault in the ProcessMimeEntity function
CVE-2018-18956 suricata: Segmentation fault in the ProcessMimeEntity function
The ProcessMimeEntity function in util-decode-mime.c in Suricata 4.x through 4.0.5 allows remote attackers to cause a denial of service (segfault and daemon crash) via crafted input to the SMTP parser.
References:
https://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-October/016227.html
https://redmine.openinfosecfoundation.org/issues/2658#change-10374
Discussion:
Created suricata tracking bugs for this issue:
Affects: epel-7 [bug 1646984]
Affects: fedora-all [bug 1646983]
---
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual communi
Bugzilla
CVE-2018-18956 suricata: Segmentation fault in the ProcessMimeEntity function [epel-7]
bugzilla·2018-11-06·CVSS 7.5
CVE-2018-18956 [HIGH] CVE-2018-18956 suricata: Segmentation fault in the ProcessMimeEntity function [epel-7]
CVE-2018-18956 suricata: Segmentation fault in the ProcessMimeEntity function [epel-7]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-7.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
Discussion:
Use the following template to for
https://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-November/016316.htmlhttps://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-October/016227.htmlhttps://redmine.openinfosecfoundation.org/issues/2658#change-10374https://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-November/016316.htmlhttps://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-October/016227.htmlhttps://redmine.openinfosecfoundation.org/issues/2658#change-10374
2018-11-05
Published
Exploited in the wild