Stack-based buffer overflow in the Back Orifice (BO) preprocessor for Snort before 2.4.3…
Priority HIGH 74Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Stack-based buffer overflow in the Back Orifice (BO) preprocessor for Snort before 2.4.3 allows remote attackers to execute arbitrary code via a crafted UDP packet.
Why it matters now
EPSS 0.83902 99th percentileScored 2026-11-07
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 · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sourcefire:snort:2.4.0:*:*:*:*:*:*:* | 2.4.0 | Vulnerable | Sourcefire |
| cpe:2.3:a:sourcefire:snort:2.4.1:*:*:*:*:*:*:* | 2.4.1 | Vulnerable | Sourcefire |
| cpe:2.3:a:sourcefire:snort:2.4.2:*:*:*:*:*:*:* | 2.4.2 | Vulnerable | Sourcefire |
- cpe:2.3:a:sourcefire:snort:2.4.0:*:*:*:*:*:*:* Versions 2.4.0 Vulnerable ·Sourcefire
- cpe:2.3:a:sourcefire:snort:2.4.1:*:*:*:*:*:*:* Versions 2.4.1 Vulnerable ·Sourcefire
- cpe:2.3:a:sourcefire:snort:2.4.2:*:*:*:*:*:*:* Versions 2.4.2 Vulnerable ·Sourcefire
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2005-3252
- 2026-10-03 Alias added: GHSA-cvh7-x6f9-3prf
References
Other 7
- 20051025 Snort's BO pre-processor exploit
- http://www130.nortelnetworks.com/cgi-bin/eserv/cs/main.jsp?cscat=BLTNDETAIL&DocumentOID=362187&RenditionID=
- ADV-2005-2138
- 20034
- 20051101 Snort Back Orifice Preprocessor Exploit (Win32 targets)
- http://www.snort.org/docs/change_logs/2.4.3/Changelog.txt
- http://www130.nortelnetworks.com/cgi-bin/eserv/cs/main.jsp?cscat=BLTNDETAIL&DocumentOID=363396&RenditionID=
More Sourcefire Snort vulnerabilities
- TI-2003-00193 Integer overflow in the TCP stream reassembly module (stream4) for Snort 2.0 and earlier… CVSS 2.0HIGH 10.0
- TI-2004-02522 The DecodeTCPOptions function in decode.c in Snort before 2.3.0, when printing TCP/IP… CVSS 2.0HIGH 7.8
- TI-2006-02677 The HTTP Inspect preprocessor (http_inspect) in Snort 2.4.0 through 2.4.4 allows remote… CVSS 2.0MEDIUM 5.0
- TI-2006-00817 The frag3 preprocessor in Sourcefire Snort 2.4.3 does not properly reassemble certain… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2005-3252 · CVE Program
- CVE-2005-3252 · NVD
- FIRST EPSS
- GHSA-cvh7-x6f9-3prf · GitHub Advisory Database · CC BY 4.0
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