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CVE-2023-0568

nvd nist
Published: Feb 16, 2023Modified: Jun 17, 2026

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8.1
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.2 / Impact: 5.9
Source: NVD

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.

Affected (3)

Products: Php: Php
Php
1 product
Php
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Php
Php
From 8.0.0 to 8.0.28
Php
From 8.1.0 to 8.1.16
Php
From 8.2.0 to 8.2.3

Related CWEs

CWE-131
Incorrect Calculation of Buffer Size
The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow.
CWE-770
Allocation of Resources Without Limits or Throttling
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

References (4)

Source: security@php.net
ExploitIssue TrackingPatchVendor Advisory
Source: security@php.net
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingPatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.