Amazon Linux AMI : php72 / php73 (ALAS-2020-1339)

critical Nessus Plugin ID 133558

Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP DirectoryIterator class accepts filenames with embedded \0 byte and treats them as terminating at that byte. This could lead to security vulnerabilities, e.g. in applications checking paths that the code is allowed to access. (CVE-2019-11045)

In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail() function, due to mistake introduced in commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, if the header is supplied in lowercase, this can result in double-freeing certain memory locations. (CVE-2019-11049)

When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash. (CVE-2019-11047)

A flaw was discovered in the link function in PHP. When compiled on Windows, it does not correctly handle paths containing NULL bytes. An attacker could abuse this flaw to bypass application checks on file paths. (CVE-2019-11044)

When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash. (CVE-2019-11050)

In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP bcmath extension functions on some systems, including Windows, can be tricked into reading beyond the allocated space by supplying it with string containing characters that are identified as numeric by the OS but aren't ASCII numbers. This can read to disclosure of the content of some memory locations. (CVE-2019-11046)

Solution

Run 'yum update php72' to update your system.

Run 'yum update php73' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2020-1339.html

Plugin Details

Severity: Critical

ID: 133558

File Name: ala_ALAS-2020-1339.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2/10/2020

Updated: 2/12/2020

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:php72, p-cpe:/a:amazon:linux:php72-bcmath, p-cpe:/a:amazon:linux:php72-cli, p-cpe:/a:amazon:linux:php72-common, p-cpe:/a:amazon:linux:php72-dba, p-cpe:/a:amazon:linux:php72-dbg, p-cpe:/a:amazon:linux:php72-debuginfo, p-cpe:/a:amazon:linux:php72-devel, p-cpe:/a:amazon:linux:php72-embedded, p-cpe:/a:amazon:linux:php72-enchant, p-cpe:/a:amazon:linux:php72-fpm, p-cpe:/a:amazon:linux:php72-gd, p-cpe:/a:amazon:linux:php72-gmp, p-cpe:/a:amazon:linux:php72-imap, p-cpe:/a:amazon:linux:php72-intl, p-cpe:/a:amazon:linux:php72-json, p-cpe:/a:amazon:linux:php72-ldap, p-cpe:/a:amazon:linux:php72-mbstring, p-cpe:/a:amazon:linux:php72-mysqlnd, p-cpe:/a:amazon:linux:php72-odbc, p-cpe:/a:amazon:linux:php72-opcache, p-cpe:/a:amazon:linux:php72-pdo, p-cpe:/a:amazon:linux:php72-pdo-dblib, p-cpe:/a:amazon:linux:php72-pgsql, p-cpe:/a:amazon:linux:php72-process, p-cpe:/a:amazon:linux:php72-pspell, p-cpe:/a:amazon:linux:php72-recode, p-cpe:/a:amazon:linux:php72-snmp, p-cpe:/a:amazon:linux:php72-soap, p-cpe:/a:amazon:linux:php72-tidy, p-cpe:/a:amazon:linux:php72-xml, p-cpe:/a:amazon:linux:php72-xmlrpc, p-cpe:/a:amazon:linux:php73, p-cpe:/a:amazon:linux:php73-bcmath, p-cpe:/a:amazon:linux:php73-cli, p-cpe:/a:amazon:linux:php73-common, p-cpe:/a:amazon:linux:php73-dba, p-cpe:/a:amazon:linux:php73-dbg, p-cpe:/a:amazon:linux:php73-debuginfo, p-cpe:/a:amazon:linux:php73-devel, p-cpe:/a:amazon:linux:php73-embedded, p-cpe:/a:amazon:linux:php73-enchant, p-cpe:/a:amazon:linux:php73-fpm, p-cpe:/a:amazon:linux:php73-gd, p-cpe:/a:amazon:linux:php73-gmp, p-cpe:/a:amazon:linux:php73-imap, p-cpe:/a:amazon:linux:php73-intl, p-cpe:/a:amazon:linux:php73-json, p-cpe:/a:amazon:linux:php73-ldap, p-cpe:/a:amazon:linux:php73-mbstring, p-cpe:/a:amazon:linux:php73-mysqlnd, p-cpe:/a:amazon:linux:php73-odbc, p-cpe:/a:amazon:linux:php73-opcache, p-cpe:/a:amazon:linux:php73-pdo, p-cpe:/a:amazon:linux:php73-pdo-dblib, p-cpe:/a:amazon:linux:php73-pgsql, p-cpe:/a:amazon:linux:php73-process, p-cpe:/a:amazon:linux:php73-pspell, p-cpe:/a:amazon:linux:php73-recode, p-cpe:/a:amazon:linux:php73-snmp, p-cpe:/a:amazon:linux:php73-soap, p-cpe:/a:amazon:linux:php73-tidy, p-cpe:/a:amazon:linux:php73-xml, p-cpe:/a:amazon:linux:php73-xmlrpc, cpe:/o:amazon:linux

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 2/7/2020

Vulnerability Publication Date: 12/23/2019

Reference Information

CVE: CVE-2019-11044, CVE-2019-11045, CVE-2019-11046, CVE-2019-11047, CVE-2019-11049, CVE-2019-11050

ALAS: 2020-1339