Out-of-bounds write in bzread() in PHP and Oracle Linux - CVE-2016-5399

Vulnerability identifier: #VU207

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2016-5399

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: Public exploit is available

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

The vulnerability exists due to incorrect error handling in bzread() function. A remote unauthenticated attacker can cause buffer overflow and execute arbitrary code on the target system.

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

PHP
Oracle Linux

Install the latest versions: (5.5.38, 5.6.24, 7.0.9).

• Exploit #371 - PHP 7.0.8 / 5.6.23 / 5.5.37 - bzread() Out-of-Bounds Write (March 18, 2020)

• https://bugs.php.net/bug.php?id=72613
• http://php.net/ChangeLog-5.php#5.5.38
• http://php.net/ChangeLog-5.php#5.6.24
• http://php.net/ChangeLog-7.php#7.0.9
• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html

• Multiple vulnerabilities in PHP