Amazon Linux AMI update for php

1) Integer overflow

EUVDB-ID: #VU16110

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2015-2305

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a local attacker to execute arbitrary code on the target system.

The vulnerability exists due to \integer overflow in the regcomp implementation in the Henry Spencer BSD regex library (aka rxspencer) alpha3.8.g5 on 32-bit platforms, as used in NetBSD through 6.1.5 and other products. A local attacker can trigger heap-based buffer overflow via a large regular expression and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected packages:

i686:
    php-gd-5.3.29-1.8.amzn1.i686
    php-soap-5.3.29-1.8.amzn1.i686
    php-xmlrpc-5.3.29-1.8.amzn1.i686
    php-debuginfo-5.3.29-1.8.amzn1.i686
    php-devel-5.3.29-1.8.amzn1.i686
    php-cli-5.3.29-1.8.amzn1.i686
    php-mcrypt-5.3.29-1.8.amzn1.i686
    php-dba-5.3.29-1.8.amzn1.i686
    php-mssql-5.3.29-1.8.amzn1.i686
    php-bcmath-5.3.29-1.8.amzn1.i686
    php-mbstring-5.3.29-1.8.amzn1.i686
    php-snmp-5.3.29-1.8.amzn1.i686
    php-pdo-5.3.29-1.8.amzn1.i686
    php-intl-5.3.29-1.8.amzn1.i686
    php-imap-5.3.29-1.8.amzn1.i686
    php-common-5.3.29-1.8.amzn1.i686
    php-tidy-5.3.29-1.8.amzn1.i686
    php-fpm-5.3.29-1.8.amzn1.i686
    php-ldap-5.3.29-1.8.amzn1.i686
    php-5.3.29-1.8.amzn1.i686
    php-recode-5.3.29-1.8.amzn1.i686
    php-xml-5.3.29-1.8.amzn1.i686
    php-mysqlnd-5.3.29-1.8.amzn1.i686
    php-process-5.3.29-1.8.amzn1.i686
    php-odbc-5.3.29-1.8.amzn1.i686
    php-pgsql-5.3.29-1.8.amzn1.i686
    php-pspell-5.3.29-1.8.amzn1.i686
    php-mysql-5.3.29-1.8.amzn1.i686
    php-embedded-5.3.29-1.8.amzn1.i686
    php-enchant-5.3.29-1.8.amzn1.i686

src:
    php-5.3.29-1.8.amzn1.src

x86_64:
    php-common-5.3.29-1.8.amzn1.x86_64
    php-mysqlnd-5.3.29-1.8.amzn1.x86_64
    php-gd-5.3.29-1.8.amzn1.x86_64
    php-xml-5.3.29-1.8.amzn1.x86_64
    php-devel-5.3.29-1.8.amzn1.x86_64
    php-pspell-5.3.29-1.8.amzn1.x86_64
    php-5.3.29-1.8.amzn1.x86_64
    php-debuginfo-5.3.29-1.8.amzn1.x86_64
    php-pdo-5.3.29-1.8.amzn1.x86_64
    php-enchant-5.3.29-1.8.amzn1.x86_64
    php-odbc-5.3.29-1.8.amzn1.x86_64
    php-fpm-5.3.29-1.8.amzn1.x86_64
    php-snmp-5.3.29-1.8.amzn1.x86_64
    php-mcrypt-5.3.29-1.8.amzn1.x86_64
    php-intl-5.3.29-1.8.amzn1.x86_64
    php-pgsql-5.3.29-1.8.amzn1.x86_64
    php-mysql-5.3.29-1.8.amzn1.x86_64
    php-dba-5.3.29-1.8.amzn1.x86_64
    php-mbstring-5.3.29-1.8.amzn1.x86_64
    php-cli-5.3.29-1.8.amzn1.x86_64
    php-recode-5.3.29-1.8.amzn1.x86_64
    php-soap-5.3.29-1.8.amzn1.x86_64
    php-embedded-5.3.29-1.8.amzn1.x86_64
    php-process-5.3.29-1.8.amzn1.x86_64
    php-bcmath-5.3.29-1.8.amzn1.x86_64
    php-mssql-5.3.29-1.8.amzn1.x86_64
    php-tidy-5.3.29-1.8.amzn1.x86_64
    php-imap-5.3.29-1.8.amzn1.x86_64
    php-xmlrpc-5.3.29-1.8.amzn1.x86_64
    php-ldap-5.3.29-1.8.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

CPE2.3

• cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*

External links

https://alas.aws.amazon.com/ALAS-2015-524.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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