USN-3646-1: PHP vulnerabilities

Releases

• Ubuntu 18.04 ESM
• Ubuntu 17.10
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• php5 - HTML-embedded scripting language interpreter
• php7.0 - HTML-embedded scripting language interpreter
• php7.1 - HTML-embedded scripting language interpreter
• php7.2 - HTML-embedded scripting language interpreter

Details

It was discovered that PHP incorrectly handled opcache access controls
when configured to use PHP-FPM. A local user could possibly use this issue
to obtain sensitive information from another user's PHP applications.
(CVE-2018-10545)

It was discovered that the PHP iconv stream filter incorrect handled
certain invalid multibyte sequences. A remote attacker could possibly use
this issue to cause PHP to hang, resulting in a denial of service.
(CVE-2018-10546)

It was discovered that the PHP PHAR error pages incorrectly filtered
certain data. A remote attacker could possibly use this issue to perform
a reflected XSS attack. (CVE-2018-10547)

It was discovered that PHP incorrectly handled LDAP. A malicious remote
LDAP server could possibly use this issue to cause PHP to crash, resulting
in a denial of service. (CVE-2018-10548)

It was discovered that PHP incorrectly handled certain exif tags in JPEG
images. A remote attacker could possibly use this issue to cause PHP to
crash, resulting in a denial of service. This issue only affected Ubuntu
16.04 LTS, Ubuntu 17.10, and Ubuntu 18.04 LTS. (CVE-2018-10549)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04

• libapache2-mod-php7.2 - 7.2.5-0ubuntu0.18.04.1
• php7.2-cgi - 7.2.5-0ubuntu0.18.04.1
• php7.2-cli - 7.2.5-0ubuntu0.18.04.1
• php7.2-fpm - 7.2.5-0ubuntu0.18.04.1

Ubuntu 17.10

• libapache2-mod-php7.1 - 7.1.17-0ubuntu0.17.10.1
• php7.1-cgi - 7.1.17-0ubuntu0.17.10.1
• php7.1-cli - 7.1.17-0ubuntu0.17.10.1
• php7.1-fpm - 7.1.17-0ubuntu0.17.10.1

Ubuntu 16.04

• libapache2-mod-php7.0 - 7.0.30-0ubuntu0.16.04.1
• php7.0-cgi - 7.0.30-0ubuntu0.16.04.1
• php7.0-cli - 7.0.30-0ubuntu0.16.04.1
• php7.0-fpm - 7.0.30-0ubuntu0.16.04.1

Ubuntu 14.04

• libapache2-mod-php5 - 5.5.9+dfsg-1ubuntu4.25
• php5-cgi - 5.5.9+dfsg-1ubuntu4.25
• php5-cli - 5.5.9+dfsg-1ubuntu4.25
• php5-fpm - 5.5.9+dfsg-1ubuntu4.25

In Ubuntu 16.04 LTS, Ubuntu 17.10, and Ubuntu 18.04 LTS, this update uses a
new upstream release, which includes additional bug fixes.

In general, a standard system update will make all the necessary changes.

References

• CVE-2018-10545
• CVE-2018-10546
• CVE-2018-10547
• CVE-2018-10548
• CVE-2018-10549

Related notices

• USN-3646-2: php5-cgi, php5-fpm, php5, libapache2-mod-php5, php5-cli