CVE-2024-3096
PHP function password_verify can erroneously return true when argument contains NUL
- State
- Published
- Severity
- 6.5 Medium
- Published
- Apr 29, 2024
- Updated
- Nov 4, 2025
- Reserved
- Mar 29, 2024
Description
In PHP version 8.1.* before 8.1.28, 8.2.* before 8.2.18, 8.3.* before 8.3.5, if a password stored with password_hash() starts with a null byte (\x00), testing a blank string as the password via password_verify() will incorrectly return true.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N | php |
Weaknesses
- CWE-20 Improper Input Validation
Affected Products
| Product | Versions |
|---|---|
PHPPHP Group |
|
References
- https://github.com/php/php-src/security/advisories/GHSA-h746-cjrr-wfmr
- http://www.openwall.com/lists/oss-security/2024/04/12/11
- https://lists.debian.org/debian-lts-announce/2024/05/msg00005.html
- https://security.netapp.com/advisory/ntap-20240510-0010/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZGWIK3HMBACERGB4TSBB2JUOMPYY2VKY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KJZK3X6B7FBE32FETDSMRLJXTFTHKWSY/
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