Vulnerability identifier: #VU210
Vulnerability risk: Low
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID:
CWE-ID:
CWE-476
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 denial of service conditions.
The vulnerability exists due to a NULL pointer dereference error in the "exif_process_user_comment()" function. A remote unauthenticated attacker can cause a denial of servoice when trying to encode JIS string.
Successful exploitation of this vulnerability may result in a crash of a worker process.
Mitigation
Install the latest versions: (5.5.38, 5.6.24, 7.0.9).
Vulnerable software versions
PHP: 5.5.0 - 5.5.37, 5.6.0 - 5.6.23, 7.0.0 - 7.0.8
External links
https://bugs.php.net/72618
https://php.net/ChangeLog-5.php#5.5.38
https://php.net/ChangeLog-5.php#5.6.24
https://php.net/ChangeLog-7.php#7.0.9
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.