CVE-2023-50251— php-svg-lib possible DoS caused by infinite recursion when parsing SVG document
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I. Basic Information for CVE-2023-50251
Vulnerability Information
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Vulnerability Title
php-svg-lib possible DoS caused by infinite recursion when parsing SVG document
Source: NVD (National Vulnerability Database)
Vulnerability Description
php-svg-lib is an SVG file parsing / rendering library. Prior to version 0.5.1, when parsing the attributes passed to a `use` tag inside an svg document, an attacker can cause the system to go to an infinite recursion. Depending on the system configuration and attack pattern this could exhaust the memory available to the executing process and/or to the server itself. An attacker sending multiple request to a system to render the above payload can potentially cause resource exhaustion to the point that the system is unable to handle incoming request. Version 0.5.1 contains a patch for this issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
未经控制的递归
Source: NVD (National Vulnerability Database)
Vulnerability Title
php-svg-lib 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
php-svg-lib是dompdf开源的一个 SVG 文件解析/渲染库。 php-svg-lib 0.5.1 之前版本存在安全漏洞，该漏洞源于当解析传递给 svg 文档内的 use标签的属性时，可能会导致系统进入无限递归，耗尽可用的内存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| dompdf | php-svg-lib | < 0.5.1 | - |
II. Public POCs for CVE-2023-50251
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same vendor: dompdf
- CVE-2021-3902
Improper Restriction of XML External Entity Reference in dom - CVE-2021-3838
PHAR Deserialization in dompdf/dompdf - CVE-2024-25117
php-svg-lib lacks path validation on font through SVG inline - CVE-2023-50262
Dompdf possible DoS caused by infinite recursion when parsin - CVE-2023-50252
php-svg-lib unsafe attributes merge when parsing `use` tag
Same weakness: CWE-674
V. Comments for CVE-2023-50251
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