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CVE-2023-0567

Published: 15 February 2023

In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, password_verify() function may accept some invalid Blowfish hashes as valid. If such invalid hash ever ends up in the password database, it may lead to an application allowing any password for this entry as valid.

Notes

AuthorNote
mdeslaur
This vulnerability requires an attacker to be able to modify
password hashes, which is an unlikely scenario

Priority

Medium

Cvss 3 Severity Score

6.2

Score breakdown

Status

Package Release Status
php8.1
Launchpad, Ubuntu, Debian
jammy
Released (8.1.2-1ubuntu2.11)
bionic Does not exist

focal Does not exist

trusty Does not exist

xenial Does not exist

upstream
Released (8.1.16)
kinetic
Released (8.1.7-1ubuntu3.3)
lunar
Released (8.1.12-1ubuntu4)
mantic Does not exist

Patches:
upstream: https://github.com/php/php-src/commit/c840f71524067aa474c00c3eacfb83bd860bfc8a
upstream: https://github.com/php/php-src/commit/a92acbad873a05470af1a47cb785a18eadd827b5
php7.4
Launchpad, Ubuntu, Debian
jammy Does not exist

kinetic Does not exist

upstream Needs triage

bionic Does not exist

trusty Does not exist

xenial Does not exist

focal
Released (7.4.3-4ubuntu2.18)
php5
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Needs triage

upstream Needs triage

xenial Does not exist

php7.0
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Does not exist

upstream
Released (8.0.28, 8.1.16, 8.2.3)
xenial
Released (7.0.33-0ubuntu0.16.04.16+esm6)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
php7.2
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

bionic
Released (7.2.24-0ubuntu0.18.04.17)

Severity score breakdown

Parameter Value
Base score 6.2
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N