CVE-2004-0493 describes a denial-of-service vulnerability in Apache httpd 2.0.49, affecting products from vendors like Avaya, Gentoo, and IBM. Remote attackers can exploit this by sending long header lines with numerous space or tab characters, leading to memory exhaustion and potentially a heap-based buffer overflow on 64-bit systems. The vulnerability has a CVSS score of 6.4, indicating a medium severity with low attack complexity and potential for partial impact on integrity and availability. While not listed in CISA KEV, public exploit code exists in ExploitDB, though there is no evidence of active exploitation or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.0CPE matchmatch criteria | cpe:2.3:h:avaya:converged_communications_server:2.0:*:*:*:*:*:*:* | ||
1.4CPE matchmatch criteria | cpe:2.3:o:gentoo:linux:1.4:*:*:*:*:*:*:* | ||
1.5CPE matchmatch criteria | cpe:2.3:o:trustix:secure_linux:1.5:*:*:*:*:*:*:* | ||
2.0CPE matchmatch criteria | cpe:2.3:o:trustix:secure_linux:2.0:*:*:*:*:*:*:* | ||
2.1CPE matchmatch criteria | cpe:2.3:o:trustix:secure_linux:2.1:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:N/I:P/A:P
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The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.