What’s Vulnerable › Vulnerabilities

CVE-2014-6603

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2014-10-07 · updated 2026-06-17
• Weakness: CWE-399

Description

The SSHParseBanner function in SSH parser (app-layer-ssh.c) in Suricata before 2.0.4 allows remote attackers to bypass SSH rules, cause a denial of service (crash), or possibly have unspecified other impact via a crafted banner, which triggers a large memory allocation or an out-of-bounds write.

Affected products

• Openinfosecfoundation Suricata: through 2.0.3-2; 2.0.1-1, 2.0.1-2, 2.0.2-1, 2.0.2-2, 2.0.3-1

References

• http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139630.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139821.html
• http://packetstormsecurity.com/files/128382/Suricata-2.0.3-Out-Of-Bounds-Access.html
• http://seclists.org/fulldisclosure/2014/Sep/79
• http://www.securityfocus.com/archive/1/533515/100/0/threaded
• http://www.securityfocus.com/bid/70083
• https://exchange.xforce.ibmcloud.com/vulnerabilities/96157
• http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139630.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-October/139821.html
• http://packetstormsecurity.com/files/128382/Suricata-2.0.3-Out-Of-Bounds-Access.html
• http://seclists.org/fulldisclosure/2014/Sep/79
• http://www.securityfocus.com/archive/1/533515/100/0/threaded

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