#VU12905 Incorrect calculation in PHP
Vulnerability identifier: #VU12905
Vulnerability risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-682
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
PHP
Universal components / Libraries /
Scripting languages
Vendor: PHP Group
Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in the exif_convert_any_to_int function in ext/exif/exif.c due to numeric errors. A remote attacker can submit specially crafted EXIF data that triggers an attempt to divide the minimum representable negative integer by -1 and cause the service to crash.
Mitigation
Update to versions 5.6.30, 7.0.15 or 7.1.1.
Vulnerable software versions
PHP: 5.6.0 - 5.6.29, 7.0.0 - 7.0.14, 7.1.0
External links
http://www.php.net/ChangeLog-5.php
http://www.php.net/ChangeLog-7.php
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
