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CVE-2023-3247

Published: 19 June 2023

In PHP versions 8.0.* before 8.0.29, 8.1.* before 8.1.20, 8.2.* before 8.2.7 when using SOAP HTTP Digest Authentication, random value generator was not checked for failure, and was using narrower range of values than it should have. In case of random generator failure, it could lead to a disclosure of 31 bits of uninitialized memory from the client to the server, and it also made easier to a malicious server to guess the client's nonce.

Notes

AuthorNote
sbeattie
PEAR issues should go against php-pear as of xenial
rodrigo-zaiden
the method php_random_bytes_throw that is being used for
nonce generation was added in php7.0 with CSPRNG API, so patching versions
older than that is not feasible as it would would likely add other issues.

Priority

Medium

Cvss 3 Severity Score

4.3

Score breakdown

Status

Package Release Status
php7.4
Launchpad, Ubuntu, Debian
focal
Released (7.4.3-4ubuntu2.19)
bionic Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mantic Does not exist

php8.1
Launchpad, Ubuntu, Debian
jammy
Released (8.1.2-1ubuntu2.13)
kinetic
Released (8.1.7-1ubuntu3.5)
lunar
Released (8.1.12-1ubuntu4.2)
bionic Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (8.1.20)
xenial Does not exist

mantic Does not exist

php8.2
Launchpad, Ubuntu, Debian
bionic Ignored
(end of standard support)
trusty Ignored
(end of standard support)
xenial Ignored
(end of standard support)
focal Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

upstream
Released (8.2.7-1)
mantic Not vulnerable
(8.2.7-1ubuntu1)
php5
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

upstream Needs triage

xenial Does not exist

trusty Ignored
(fix not applicable)
mantic Does not exist

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

focal Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial
Released (7.0.33-0ubuntu0.16.04.16+esm7)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Does not exist

php7.2
Launchpad, Ubuntu, Debian
focal Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

bionic
Released (7.2.24-0ubuntu0.18.04.17+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
mantic Does not exist

Severity score breakdown

Parameter Value
Base score 4.3
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N