PT-2019-8748 · Open Information Security Foundation · Suricata

Published 2019-04-04 · Updated 2024-10-22 · CVE-2018-10242

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Suricata version 4.0.4

Description The issue arises from incorrect handling of the SSH banner parsing in Suricata. A malformed SSH banner can cause the parsing code to read beyond the allocated data due to the lack of a length check in the SSHParseBanner function in app-layer-ssh.c.

Recommendations For Suricata version 4.0.4, consider disabling the SSH parsing functionality until a patch is available to prevent potential exploitation. Restrict access to the SSHParseBanner function in app-layer-ssh.c to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2018-10242

DLA-1751-1

Affected Products

Suricata

References · 16

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10243 · Security Note
• https://suricata-ids.org/2018/07/18/suricata-4-0-5-available · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-10242 · Vendor Advisory
• https://security-tracker.debian.org/tracker/DLA-1751-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-10242 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10242 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-10242 · Security Note
• https://security-tracker.debian.org/tracker/source-package/suricata · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-10242 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-1751-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-10242 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-10242 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-10242 · Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2019/04/msg00010.html · Note
• https://packages.debian.org/src:suricata · Note