CVE-2004-0492
HighSummary
Heap-based buffer overflow in proxy_util.c of mod_proxy in Apache 1.3.25 to 1.3.31. A remote attacker can send an HTTP Content-Length header with a negative value, causing large data copying and leading to process crash or potential arbitrary code execution.
Risk Assessment
Risk includes denial of service (DoS) and potential remote code execution, which could lead to server compromise and data breach.
Recommendation
Immediately upgrade Apache to version 1.3.32 or later, which includes a fix for this vulnerability.
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Original NVD description (English source)
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.