PHP up to 8.1.29/8.2.23/8.3.11 PHP-FPM SAPI null byte or nul character

CVSS Meta Temp Score
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CTI Interest Score
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3.3$0-$5k0.00

Summaryinfo

A vulnerability was found in PHP up to 8.1.29/8.2.23/8.3.11 and classified as problematic. The impacted element is an unknown function of the component PHP-FPM SAPI. The manipulation results in improper neutralization of null byte or nul character. This vulnerability was named CVE-2024-9026. The attack needs to be approached locally. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in PHP up to 8.1.29/8.2.23/8.3.11. It has been classified as problematic. Affected is an unknown code of the component PHP-FPM SAPI. The manipulation with an unknown input leads to a improper neutralization of null byte or nul character vulnerability. CWE is classifying the issue as CWE-158. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes NUL characters or null bytes when they are sent to a downstream component. This is going to have an impact on integrity. CVE summarizes:

In PHP versions 8.1.* before 8.1.30, 8.2.* before 8.2.24, 8.3.* before 8.3.12, when using PHP-FPM SAPI and it is configured to catch workers output through catch_workers_output = yes, it may be possible to pollute the final log or remove up to 4 characters from the log messages by manipulating log message content. Additionally, if PHP-FPM is configured to use syslog output, it may be possible to further remove log data using the same vulnerability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2024-9026 since 09/20/2024. The exploitability is told to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 208984 (Debian dla-3920 : libapache2-mod-php7.4 - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.1.30, 8.2.24 or 8.3.12 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (208984). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.3
NVD Vector: 🔍

CNA Base Score: 3.3
CNA Vector (php): 🔍

CVSSv2info

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

Exploitinginfo

Class: Improper neutralization of null byte or nul character
CWE: CWE-158 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 208984
Nessus Name: Debian dla-3920 : libapache2-mod-php7.4 - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PHP 8.1.30/8.2.24/8.3.12

Timelineinfo

09/20/2024 🔍
10/08/2024 +18 days 🔍
10/08/2024 +0 days 🔍
08/19/2025 +315 days 🔍

Sourcesinfo

Product: php.org

Advisory: GHSA-865w-9rf3-2wh5
Status: Confirmed

CVE: CVE-2024-9026 (🔍)
GCVE (CVE): GCVE-0-2024-9026
GCVE (VulDB): GCVE-100-279528

Entryinfo

Created: 10/08/2024 06:55
Updated: 08/19/2025 20:18
Changes: 10/08/2024 06:55 (64), 10/11/2024 06:34 (1), 10/15/2024 06:56 (2), 08/19/2025 20:18 (10)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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