CVE-2023-50251

Summary

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.

Affected Software

Weaknesses

• CWE-674: CWE-674: Uncontrolled Recursion

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/dompdf/php-svg-lib/security/advisories/GHSA-ff5x-7qg5-vwf2
• https://github.com/dompdf/php-svg-lib/commit/88163cbe562d9b391b3a352e54d9c89d02d77ee0

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

References

• https://github.com/dompdf/php-svg-lib/security/advisories/GHSA-ff5x-7qg5-vwf2
• https://github.com/dompdf/php-svg-lib/commit/88163cbe562d9b391b3a352e54d9c89d02d77ee0

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