CVE-2023-0568 - CVE House
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Status published High CVE-2023-0568

Array overrun in common path resolve code

Vulnerability Description

In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, core path resolution function allocate buffer one byte too small. When resolving paths with lengths close to system MAXPATHLEN setting, this may lead to the byte after the allocated buffer being overwritten with NUL value, which might lead to unauthorized data access or modification.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Niels Dossche

References

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Affected Vendor

Affected Software

PHP
Vulnerable Versions:
8.0.x, 8.1.x, 8.2.x

Timeline

Official Publish: February 16th, 2023
Last Modified: March 18th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-131

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.