CVE-2015-9253 describes a denial-of-service vulnerability affecting PHP 7.3.x before 7.3.0alpha3, 7.2.x before 7.2.8, and before 7.1.20. The vulnerability allows a malicious actor to trigger an endless restart loop in the php-fpm master process by using program execution functions with a non-blocking STDIN stream. This results in 100% CPU utilization and excessive error logging, leading to resource exhaustion. The vulnerability has a CVSS v3 score of 6.5 (Medium), indicating a low attack complexity and no user interaction required, but it does require low privileges. The primary impact is high availability loss (denial of service). There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 7.1.20CPE matchmatch criteria | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | ||
>= 7.2.0, < 7.2.8CPE matchmatch criteria | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | ||
7.3.0CPE matchmatch criteria | cpe:2.3:a:php:php:7.3.0:alpha1:*:*:*:*:*:* | ||
7.3.0CPE matchmatch criteria | cpe:2.3:a:php:php:7.3.0:alpha2:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.