| Name | CVE-2025-6491 |
| Description | In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (>2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| php7.4 (PTS) | bullseye | 7.4.33-1+deb11u5 | vulnerable |
| bullseye (security) | 7.4.33-1+deb11u8 | vulnerable | |
| php8.2 (PTS) | bookworm, bookworm (security) | 8.2.28-1~deb12u1 | vulnerable |
| php8.4 (PTS) | sid, trixie | 8.4.10-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| php7.4 | source | (unstable) | (unfixed) | |||
| php8.2 | source | (unstable) | (unfixed) | |||
| php8.4 | source | (unstable) | 8.4.10-1 |
https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x
Fixed by: https://github.com/php/php-src/commit/9cb3d8d200f0c822b17bda35a2a67a97b039d3e1 (php-8.1.33)