SSH Banner Parsing Vulnerability in Suricata by Open Information Security Foundation
CVE-2018-10242

7.5HIGH

Key Information:

Vendor

Suricata-ids

Status
Suricata
Vendor
CVE Published:
4 April 2019

What is CVE-2018-10242?

The Suricata version 4.0.4 exhibits a flaw in its handling of the SSH banner parsing process. Specifically, the SSHParseBanner function within the app-layer-ssh.c file does not perform adequate length checks on the input data. Consequently, a specially crafted malformed SSH banner may lead to a buffer overflow, allowing for potential exploits that could compromise the security of systems utilizing this version.

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References

https://suricata-ids.org/2018/07/18/suricata-4-0-5-availa...
x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2019/04/msg0...
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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