Vulnerability Monitor

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CVE-2004-0492


Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote attackers to cause a denial of service (process crash) and possibly execute arbitrary code via a negative Content-Length HTTP header field, which causes a large amount of data to be copied.


Security Impact Summary

CVE-2004-0492 is a security vulnerability that . Impacting 7 products from apache, from hp, from hp and 4 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2004, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.


Published

2004-08-06T04:00:00.000

Last Modified

2026-04-16T00:27:16.627

Status

Modified

Source

[email protected]

Severity

CVSSv2: 10.0 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

10.0

Weaknesses
  • Type: Primary
    NVD-CWE-Other

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application apache http_server 1.3.26 Yes
Application apache http_server 1.3.27 Yes
Application apache http_server 1.3.28 Yes
Application apache http_server 1.3.29 Yes
Application apache http_server 1.3.31 Yes
Application hp virtualvault 11.0.4 Yes
Application hp webproxy 2.0 Yes
Application hp webproxy 2.1 Yes
Application ibm http_server 1.3.26 Yes
Application ibm http_server 1.3.26.1 Yes
Application ibm http_server 1.3.26.2 Yes
Application ibm http_server 1.3.28 Yes
Application sgi propack 2.4 Yes
Operating System hp vvos 11.04 Yes
Operating System openbsd openbsd * Yes
Operating System openbsd openbsd 3.4 Yes
Operating System openbsd openbsd 3.5 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For apache's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.