PHP up to 8.0.27/8.1.15/8.2.2 MAXPATHLEN Setting buffer size

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in PHP up to 8.0.27/8.1.15/8.2.2 and classified as critical. This impacts an unknown function of the component MAXPATHLEN Setting Handler. Performing a manipulation results in buffer size. This vulnerability is known as CVE-2023-0568. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in PHP up to 8.0.27/8.1.15/8.2.2 (Programming Language Software). This affects an unknown part of the component MAXPATHLEN Setting Handler. The manipulation with an unknown input leads to a buffer size vulnerability. CWE is classifying the issue as CWE-131. The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was published 02/16/2023 as 81746. It is possible to read the advisory at bugs.php.net. This vulnerability is uniquely identified as CVE-2023-0568 since 01/29/2023. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/11/2024).

The vulnerability scanner Nessus provides a plugin with the ID 212411 (RHEL 8 : php:7.4 (RHSA-2024:10952)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.0.28, 8.1.16 or 8.2.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (212411). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (PHP Group): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer size
CWE: CWE-131 / CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 212411
Nessus Name: RHEL 8 : php:7.4 (RHSA-2024:10952)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PHP 8.0.28/8.1.16/8.2.3

Timelineinfo

01/29/2023 🔍
02/16/2023 +18 days 🔍
02/16/2023 +0 days 🔍
04/27/2025 +801 days 🔍

Sourcesinfo

Product: php.org

Advisory: 81746
Status: Confirmed

CVE: CVE-2023-0568 (🔍)
GCVE (CVE): GCVE-0-2023-0568
GCVE (VulDB): GCVE-100-221175

Entryinfo

Created: 02/16/2023 09:09
Updated: 04/27/2025 23:32
Changes: 02/16/2023 09:09 (50), 03/16/2023 13:01 (11), 12/11/2024 22:48 (17), 04/27/2025 23:32 (3)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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