PT-2018-14741 · Open Information Security Foundation+1 · Suricata+1

Victor Julien · Published 2018-11-05 · Updated 2021-06-24 · CVE-2018-18956

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Suricata versions 4.0.0 through 4.0.5

Description The issue allows remote attackers to cause a denial of service, resulting in a segfault and daemon crash, via crafted input to the SMTP parser. This has been exploited in the wild.

Recommendations For Suricata versions 4.0.0 through 4.0.5, update to version 4.0.6 or later to resolve the issue.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2020-3551

ALT-PU-2021-2056

CVE-2018-18956

Affected Products

Alt Linux

Suricata

References · 24

• https://cve.org/CVERecord?id=CVE-2018-18956 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-18956 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6794 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1010251 · Security Note
• https://ubuntu.com/security/CVE-2018-18956 · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2021-2056 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1010279 · Security Note
• https://bdu.fstec.ru/vul/2018-00358 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14568 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18956 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-18956 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10050 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2018-18956 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-18956 · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2020-3551 · Vendor Advisory