Null byte termination in hostnames
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| PHP Group | PHP | affected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | — |
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4254-1 | php7.4 security update |
Debian DSA |
DSA-5967-1 | php8.2 security update |
EUVD |
EUVD-2025-21274 | 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. |
Ubuntu USN |
USN-7648-1 | PHP vulnerabilities |
Ubuntu USN |
USN-7648-2 | PHP vulnerabilities |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.740% probability within 30 days)
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| CPEs | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* |
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| Metrics |
ssvc
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epss
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threat_severity
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threat_severity
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| 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 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. | |
| Title | Null byte termination in hostnames | |
| Weaknesses | CWE-918 | |
| References |
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| Metrics |
cvssV3_1
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