In PHP versions 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8 various XML functions rely on libxml global state to track configuration variables, like whether external entities are loaded. This state is assumed to be unchanged unless the user explicitly changes it by calling appropriate function. However, since the state is process-global, other modules - such as ImageMagick - may also use this library within the same process, and change that global state for their internal purposes, and leave it in a state where external entities loading is enabled. This can lead to the situation where external XML is parsed with external entities loaded, which can lead to disclosure of any local files accessible to PHP. This vulnerable state may persist in the same process across many requests, until the process is shut down.
Metrics
Affected Vendors & Products
| Vendors | Products |
|---|---|
| Debian |
|
| Fedoraproject |
|
| Php |
|
| Redhat |
|
Configuration 1 [-]
|
Configuration 2 [-]
|
Configuration 3 [-]
|
| Package | CPE | Advisory | Released Date |
|---|---|---|---|
| Red Hat Enterprise Linux 8 | |||
| php:8.0-8080020231006102311.0b4eb31d | cpe:/a:redhat:enterprise_linux:8 | RHSA-2023:5927 | 2023-10-19T00:00:00Z |
| php:7.4-8100020241113075828.f7998665 | cpe:/a:redhat:enterprise_linux:8 | RHSA-2024:10952 | 2024-12-11T00:00:00Z |
| Red Hat Enterprise Linux 9 | |||
| php-0:8.0.30-1.el9_2 | cpe:/a:redhat:enterprise_linux:9 | RHSA-2023:5926 | 2023-10-19T00:00:00Z |
| php:8.1-9030020231221080340.9 | cpe:/a:redhat:enterprise_linux:9 | RHSA-2024:0387 | 2024-01-24T00:00:00Z |
References
History
Thu, 13 Feb 2025 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In PHP versions 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8 various XML functions rely on libxml global state to track configuration variables, like whether external entities are loaded. This state is assumed to be unchanged unless the user explicitly changes it by calling appropriate function. However, since the state is process-global, other modules - such as ImageMagick - may also use this library within the same process, and change that global state for their internal purposes, and leave it in a state where external entities loading is enabled. This can lead to the situation where external XML is parsed with external entities loaded, which can lead to disclosure of any local files accessible to PHP. This vulnerable state may persist in the same process across many requests, until the process is shut down. | In PHP versions 8.0.* before 8.0.30, 8.1.* before 8.1.22, and 8.2.* before 8.2.8 various XML functions rely on libxml global state to track configuration variables, like whether external entities are loaded. This state is assumed to be unchanged unless the user explicitly changes it by calling appropriate function. However, since the state is process-global, other modules - such as ImageMagick - may also use this library within the same process, and change that global state for their internal purposes, and leave it in a state where external entities loading is enabled. This can lead to the situation where external XML is parsed with external entities loaded, which can lead to disclosure of any local files accessible to PHP. This vulnerable state may persist in the same process across many requests, until the process is shut down. |
MITRE
Status: PUBLISHED
Assigner: php
Published:
Updated: 2025-02-13T17:01:48.139Z
Reserved: 2023-07-21T16:16:57.133Z
Link: CVE-2023-3823
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-08-11T06:15:09.283
Modified: 2025-02-13T17:16:59.300
Link: CVE-2023-3823
Redhat