CVE-2024-3096: PHP function password_verify can erroneously return true when argument contains NUL
First published: Thu Apr 11 2024(Updated: )
Fixed bug GHSA-h746-cjrr-wfmr (password_verify can erroneously return true, opening ATO risk). (CVE-2024-3096)
Credit: security@php.net security@php.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/php7.4 | 7.4.33-1+deb11u5 | |
| debian/php8.2 | 8.2.20-1~deb12u1 8.2.23-1 | |
| redhat/php | <8.1.28 | 8.1.28 |
| redhat/php | <8.2.18 | 8.2.18 |
| redhat/php | <8.3.6 | 8.3.6 |
| PHP | <8.1.28 | 8.1.28 |
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Reference Links
- https://www.php.net/ChangeLog-8.php#8.1.28 (Advisory)
- http://www.openwall.com/lists/oss-security/2024/04/12/11
- https://github.com/php/php-src/security/advisories/GHSA-h746-cjrr-wfmr
- https://lists.debian.org/debian-lts-announce/2024/05/msg00005.html
- https://security.netapp.com/advisory/ntap-20240510-0010/
- https://launchpad.net/bugs/cve/CVE-2024-3096
- https://github.com/php/php-src/commit/0ba5229a3f7572846e91c8f5382e87785f543826
- https://security-tracker.debian.org/tracker/CVE-2024-3096
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-3096
- https://nvd.nist.gov/vuln/detail/CVE-2024-3096
- https://ubuntu.com/security/CVE-2024-3096
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2275062
- https://access.redhat.com/errata/RHSA-2024:10952
- https://access.redhat.com/errata/RHSA-2024:10950
- https://access.redhat.com/errata/RHSA-2024:10949
- https://access.redhat.com/errata/RHSA-2024:10951
- https://bugzilla.redhat.com/show_bug.cgi?id=2275061
Frequently Asked Questions
What is the severity of CVE-2024-3096?
CVE-2024-3096 has a moderate severity level due to the potential for unauthorized access if exploited.
How do I fix CVE-2024-3096?
To fix CVE-2024-3096, update to the recommended versions of PHP: 7.4.33-1+deb11u5, 8.2.20-1~deb12u1, 8.2.23, or 8.1.28.
What does CVE-2024-3096 affect?
CVE-2024-3096 affects the PHP password_verify function, particularly when handling passwords with null bytes.
What issues can arise from CVE-2024-3096?
CVE-2024-3096 can lead to an authorization token (ATO) risk if blank strings are incorrectly accepted as valid passwords.
Which PHP versions are vulnerable to CVE-2024-3096?
The vulnerable PHP versions include 7.4, 8.1.x, and 8.2.x prior to their respective patched versions.
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