The SSHParseBanner function in SSH parser (app-layer-ssh.c) in Suricata before 2.0.4…
Priority LOW 28CWE-399Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.02841 86th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openinfosecfoundation:suricata:*:*:*:*:*:*:*:* | up to 2.0.3-2 | Vulnerable | Openinfosecfoundation |
| cpe:2.3:a:openinfosecfoundation:suricata:2.0.1-1:*:*:*:*:*:*:* | 2.0.1-1 | Vulnerable | Openinfosecfoundation |
| cpe:2.3:a:openinfosecfoundation:suricata:2.0.1-2:*:*:*:*:*:*:* | 2.0.1-2 | Vulnerable | Openinfosecfoundation |
| cpe:2.3:a:openinfosecfoundation:suricata:2.0.2-1:*:*:*:*:*:*:* | 2.0.2-1 | Vulnerable | Openinfosecfoundation |
| cpe:2.3:a:openinfosecfoundation:suricata:2.0.2-2:*:*:*:*:*:*:* | 2.0.2-2 | Vulnerable | Openinfosecfoundation |
| cpe:2.3:a:openinfosecfoundation:suricata:2.0.3-1:*:*:*:*:*:*:* | 2.0.3-1 | Vulnerable | Openinfosecfoundation |
- cpe:2.3:a:openinfosecfoundation:suricata:*:*:*:*:*:*:*:* Versions up to 2.0.3-2 Vulnerable ·Openinfosecfoundation
- cpe:2.3:a:openinfosecfoundation:suricata:2.0.1-1:*:*:*:*:*:*:* Versions 2.0.1-1 Vulnerable ·Openinfosecfoundation
- cpe:2.3:a:openinfosecfoundation:suricata:2.0.1-2:*:*:*:*:*:*:* Versions 2.0.1-2 Vulnerable ·Openinfosecfoundation
- cpe:2.3:a:openinfosecfoundation:suricata:2.0.2-1:*:*:*:*:*:*:* Versions 2.0.2-1 Vulnerable ·Openinfosecfoundation
- cpe:2.3:a:openinfosecfoundation:suricata:2.0.2-2:*:*:*:*:*:*:* Versions 2.0.2-2 Vulnerable ·Openinfosecfoundation
- cpe:2.3:a:openinfosecfoundation:suricata:2.0.3-1:*:*:*:*:*:*:* Versions 2.0.3-1 Vulnerable ·Openinfosecfoundation
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2014-6603
- 2026-10-03 Alias added: GHSA-9x5x-99rm-rq9h
References
More Openinfosecfoundation Suricata vulnerabilities
- TI-2015-07367 The MemcmpLowercase function in Suricata before 2.0.6 improperly excludes the first byte… CVSS 3.0CRITICAL 9.8
- TI-2017-11290 In Suricata before 4.x, it was possible to trigger lots of redundant checks on the… CVSS 3.0HIGH 7.5
- TI-2017-04876 Suricata before 3.2.1 has an IPv4 defragmentation evasion issue caused by lack of a check… CVSS 3.0HIGH 7.5
- TI-2013-05054 Suricata before 1.4.6 allows remote attackers to cause a denial of service (crash) via a malformed SSL record. CVSS 2.0MEDIUM 5.0
- TI-2015-00886 The DER parser in Suricata before 2.0.8 allows remote attackers to cause a denial of… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2014-6603 · CVE Program
- CVE-2014-6603 · NVD
- FIRST EPSS
- GHSA-9x5x-99rm-rq9h · GitHub Advisory Database · CC BY 4.0
- CVE-2014-6603 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences