CVE-2023-0567
php: Password_verify() always return true with some hash
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Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 15, 2023
Updated · February 26, 2026
Description
A vulnerability was found in PHP. This security flaw occurs when malformatted BCrypt hashes that include a $ within their salt part trigger a buffer overread and may erroneously validate any password as valid.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE-328 · Use of Weak Hash