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Quadratic blowup in Convert::xml2array()

Moderate severity GitHub Reviewed Published Jun 29, 2022 to the GitHub Advisory Database • Updated Aug 17, 2023

Package

composer silverstripe/framework (Composer)

Affected versions

>= 4.0.0, < 4.10.9

Patched versions

4.10.9

Description

Silverstripe silverstripe/framework 4.x until 4.10.9 has a quadratic blowup in Convert::xml2array() that enables a remote attack via a crafted XML document.

References

Published by the National Vulnerability Database Jun 28, 2022
Published to the GitHub Advisory Database Jun 29, 2022
Reviewed Jun 29, 2022
Last updated Aug 17, 2023

Severity

Moderate
6.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weaknesses

CVE ID

CVE-2021-41559

GHSA ID

GHSA-9fmg-89fx-r33w

Source code

No known source code
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