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Slackware Linux 15.0 / current php Multiple Vulnerabilities (SSA:2023-045-02)

high Nessus Plugin ID 171479

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Synopsis

The remote Slackware Linux host is missing a security update to php.

Description

The version of php installed on the remote host is prior to 7.4.33 / 8.0.28 / 8.1.16. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2023-045-02 advisory.

 - In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, core path resolution function allocate buffer one byte too small. When resolving paths with lengths close to system MAXPATHLEN setting, this may lead to the byte after the allocated buffer being overwritten with NUL value, which might lead to unauthorized data access or modification. (CVE-2023-0568)

 - 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. (CVE-2023-0567)

 - In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, excessive number of parts in HTTP form upload can cause high resource consumption and excessive number of log entries. This can cause denial of service on the affected server by exhausting CPU resources or disk space. (CVE-2023-0662)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the affected php package.

Plugin Details

Severity: High

ID: 171479

File Name: Slackware_SSA_2023-045-02.nasl

Version: 1.7

Type: local

Published: 2/15/2023

Updated: 10/18/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2023-0568

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:slackware:slackware_linux:php, p-cpe:/a:slackware:slackware_linux:php80, p-cpe:/a:slackware:slackware_linux:php81, cpe:/o:slackware:slackware_linux, cpe:/o:slackware:slackware_linux:15.0

Required KB Items: Host/local_checks_enabled, Host/Slackware/release, Host/Slackware/packages

Exploit Available: true

Exploit Ease: Exploits are available

Reference Information

CVE: CVE-2023-0567, CVE-2023-0568, CVE-2023-0662

IAVA: 2023-A-0105-S, 2023-A-0423