CVE-2003-1564 describes a denial-of-service vulnerability in libxml2, specifically in versions prior to 2.5.0, where improper recursion detection during entity expansion allows attackers to craft XML documents that consume excessive memory and CPU resources. This vulnerability, known as the "billion laughs attack," carries a CVSS v3.1 score of 6.5 (Medium), indicating it can be exploited remotely with low attack complexity, requiring user interaction, to achieve high availability impact. Despite its age and potential for denial of service, there is no evidence of active exploitation, public exploit code (e.g., Metasploit, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.5.0CPE matchmatch criteria | cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.