Amazon Linux AMI update for php56

1) Input validation error

EUVDB-ID: #VU72165

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-0662

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when parsing multipart request body. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages:

i686:
    php56-pgsql-5.6.40-1.144.amzn1.i686
    php56-opcache-5.6.40-1.144.amzn1.i686
    php56-xmlrpc-5.6.40-1.144.amzn1.i686
    php56-pdo-5.6.40-1.144.amzn1.i686
    php56-embedded-5.6.40-1.144.amzn1.i686
    php56-mcrypt-5.6.40-1.144.amzn1.i686
    php56-enchant-5.6.40-1.144.amzn1.i686
    php56-fpm-5.6.40-1.144.amzn1.i686
    php56-gmp-5.6.40-1.144.amzn1.i686
    php56-snmp-5.6.40-1.144.amzn1.i686
    php56-gd-5.6.40-1.144.amzn1.i686
    php56-dbg-5.6.40-1.144.amzn1.i686
    php56-intl-5.6.40-1.144.amzn1.i686
    php56-process-5.6.40-1.144.amzn1.i686
    php56-common-5.6.40-1.144.amzn1.i686
    php56-recode-5.6.40-1.144.amzn1.i686
    php56-debuginfo-5.6.40-1.144.amzn1.i686
    php56-pspell-5.6.40-1.144.amzn1.i686
    php56-mssql-5.6.40-1.144.amzn1.i686
    php56-devel-5.6.40-1.144.amzn1.i686
    php56-soap-5.6.40-1.144.amzn1.i686
    php56-cli-5.6.40-1.144.amzn1.i686
    php56-bcmath-5.6.40-1.144.amzn1.i686
    php56-tidy-5.6.40-1.144.amzn1.i686
    php56-imap-5.6.40-1.144.amzn1.i686
    php56-mbstring-5.6.40-1.144.amzn1.i686
    php56-5.6.40-1.144.amzn1.i686
    php56-ldap-5.6.40-1.144.amzn1.i686
    php56-mysqlnd-5.6.40-1.144.amzn1.i686
    php56-odbc-5.6.40-1.144.amzn1.i686
    php56-dba-5.6.40-1.144.amzn1.i686
    php56-xml-5.6.40-1.144.amzn1.i686

src:
    php56-5.6.40-1.144.amzn1.src

x86_64:
    php56-mbstring-5.6.40-1.144.amzn1.x86_64
    php56-recode-5.6.40-1.144.amzn1.x86_64
    php56-imap-5.6.40-1.144.amzn1.x86_64
    php56-gmp-5.6.40-1.144.amzn1.x86_64
    php56-tidy-5.6.40-1.144.amzn1.x86_64
    php56-cli-5.6.40-1.144.amzn1.x86_64
    php56-process-5.6.40-1.144.amzn1.x86_64
    php56-embedded-5.6.40-1.144.amzn1.x86_64
    php56-ldap-5.6.40-1.144.amzn1.x86_64
    php56-debuginfo-5.6.40-1.144.amzn1.x86_64
    php56-dba-5.6.40-1.144.amzn1.x86_64
    php56-mcrypt-5.6.40-1.144.amzn1.x86_64
    php56-opcache-5.6.40-1.144.amzn1.x86_64
    php56-dbg-5.6.40-1.144.amzn1.x86_64
    php56-odbc-5.6.40-1.144.amzn1.x86_64
    php56-bcmath-5.6.40-1.144.amzn1.x86_64
    php56-common-5.6.40-1.144.amzn1.x86_64
    php56-pgsql-5.6.40-1.144.amzn1.x86_64
    php56-enchant-5.6.40-1.144.amzn1.x86_64
    php56-soap-5.6.40-1.144.amzn1.x86_64
    php56-devel-5.6.40-1.144.amzn1.x86_64
    php56-mssql-5.6.40-1.144.amzn1.x86_64
    php56-pdo-5.6.40-1.144.amzn1.x86_64
    php56-intl-5.6.40-1.144.amzn1.x86_64
    php56-5.6.40-1.144.amzn1.x86_64
    php56-xmlrpc-5.6.40-1.144.amzn1.x86_64
    php56-snmp-5.6.40-1.144.amzn1.x86_64
    php56-pspell-5.6.40-1.144.amzn1.x86_64
    php56-mysqlnd-5.6.40-1.144.amzn1.x86_64
    php56-fpm-5.6.40-1.144.amzn1.x86_64
    php56-gd-5.6.40-1.144.amzn1.x86_64
    php56-xml-5.6.40-1.144.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

php56: before 5.6.40-1.144

External links

http://alas.aws.amazon.com/ALAS-2023-1879.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.