SB2018032605 - SUSE Linux update for php53
Published: March 26, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 vulnerabilities.
1) Improper input validation (CVE-ID: CVE-2016-10712)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a remote unauthenticated attacker to obtain potentially sensitive information on the target system.
The weakness exists in the stream_get_meta_data function due to improper input validation. A remote attacker can send a specially crafted file and control metadata.
2) Use-after-free error (CVE-ID: CVE-2016-5771)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 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/E:P/U:Amber
The vulnerability allows a remote attacker to execute arbitrary PHP code on the target system.
The vulnerability exists due to use-after-free in GC algorithm and unserialize. A remote attacker can create a specially crafted zval object and exploit the PHP process by taking over the EIP/RIP.
Successful exploitation of this vulnerability results in complete control over the vulnerable web application and execute arbitrary PHP code on the target system.3) Use-after-free error (CVE-ID: CVE-2016-5773)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 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/E:P/U:Amber
The vulnerability allows a remote attacker to execute arbitrary PHP code on the target system.
The vulnerability exists due to use-after-free in GC algorithm and unserialize. A remote attacker can create a specially crafted zval object and exploit the PHP process by taking over the EIP/RIP.
Successful exploitation of this vulnerability results in complete control over the vulnerable web application and execute arbitrary PHP code on the target system.4) Infinite loop (CVE-ID: CVE-2018-5711)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The disclosed vulnerability allows a local unauthenticated attacker to cause DoS condition.
The vulnerability exists in PHP GD Graphics Library due to insufficient sanitization of user-supplied data. A local attacker can submit a specially crafted GIF, trigger an infinite loop and cause the service to crash.
5) Reflected cross-site scripting (CVE-ID: CVE-2018-5712)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists on the PHAR 404 error page due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
6) Stack-based buffer overflow (CVE-ID: CVE-2018-7584)
CWE-ID: CWE-121 - Stack-based buffer overflow
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to stack-based buffer overflow when handling malicious input. A remote attacker can send specially crafted HTTP response packets, trigger memory corruption and cause the application to crash.
Remediation
Install update from vendor's website.