Description
In PHP versions:8.1.* before 8.1.34, 8.2.* before 8.2.30, 8.3.* before 8.3.29, 8.4.* before 8.4.16, 8.5.* before 8.5.1, the getimagesize() function may leak uninitialized heap memory into the APPn segments (e.g., APP1) when reading images in multi-chunk mode (such as via php://filter). This occurs due to a bug in php_read_stream_all_chunks() that overwrites the buffer without advancing the pointer, leaving tail bytes uninitialized. This may lead to information disclosure of sensitive heap data and affect the confidentiality of the target server.
INFO
Published Date :
2025-12-27T19:33:23.973Z
Last Modified :
2025-12-29T16:01:36.231Z
Source :
php
AFFECTED PRODUCTS
The following products are affected by CVE-2025-14177 vulnerability.
| Vendors | Products |
|---|---|
| Php |
|
| Php Group |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2025-14177.
