Multiple vulnerabilities in PHP



Published: 2018-02-07
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2018-5712
CVE-2018-5711
CWE-ID CWE-79
CWE-835
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		PHP
Universal components / Libraries / Scripting languages

Vendor PHP Group

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Reflected cross-site scripting

EUVDB-ID: #VU10389

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2018-5712

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

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.

Mitigation

Update to version 7.2.5.

Vulnerable software versions

PHP: 5.6.0 - 5.6.32, 7.0.0 - 7.0.26, 7.1.0 - 7.1.12, 7.2.0

CPE2.3 External links

http://bugs.php.net/bug.php?id=74782

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Infinite loop

EUVDB-ID: #VU10390

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2018-5711

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

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.

Mitigation

The vulnerability is addressed in the following versions: 5.6.33, 7.0.27, 7.1.13, and 7.2.1.

Vulnerable software versions

PHP: 5.6.0 - 5.6.32, 7.0.0 - 7.0.26, 7.1.0 - 7.1.12, 7.2.0

CPE2.3 External links

http://bugs.php.net/bug.php?id=74782

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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