PT-2023-31509 · Unknown · Php-Svg-Lib

Cod3Beat · Published 2023-12-12 · Updated 2024-03-20 · CVE-2023-50251

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions php-svg-lib versions prior to 0.5.1

Description The issue arises when parsing attributes passed to a use tag inside an SVG document, allowing an attacker to cause the system to go into infinite recursion. This could exhaust the memory available to the executing process and/or the server itself, potentially leading to resource exhaustion if multiple requests are sent to render the payload.

Recommendations For versions prior to 0.5.1, update to version 0.5.1 to resolve the issue. As a temporary workaround, consider restricting the parsing of use tags with href or xlink:href attributes to prevent infinite recursion.

Exploit

Fix

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

CVE-2023-50251

DSA-5642-1

GHSA-FF5X-7QG5-VWF2

Affected Products

Php-Svg-Lib

References · 12

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/50xxx/CVE-2023-50251.json · Exploit
• 🔥 https://github.com/dompdf/php-svg-lib/security/advisories/GHSA-ff5x-7qg5-vwf2 · Exploit
• https://github.com/dompdf/php-svg-lib/commit/88163cbe562d9b391b3a352e54d9c89d02d77ee0 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-50251 · Security Note
• https://osv.dev/vulnerability/CVE-2023-50251 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-50251 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-ff5x-7qg5-vwf2 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-5642-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-50251 · Vendor Advisory
• https://github.com/dompdf/php-svg-lib · Note
• https://twitter.com/CVEnew/status/1734674637114724680 · Twitter Post
• https://t.me/cvenotify/63779 · Telegram Post