BIT-libphp-2025-1220

vendorUSosv

Null byte termination in hostnames

view advisory published 2025-08-11Licence: per source

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 some functions like fsockopen() lack validation that the hostname supplied does not contain null characters. This may lead to other functions like parse_url() treat the hostname in different way, thus opening way to security problems if the user code implements access checks before access using such functions.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2025-1220USmedium5.3—
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 some functions like fsockopen() lack validation that the hostname supplied does n…
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