CVE-2015-8389 is a critical denial-of-service vulnerability affecting PCRE versions prior to 8.38, including its use in Fedora and PHP. It arises from mishandling specific regular expression patterns, such as /(?:|a|){100}x/, leading to infinite recursion. With a CVSS score of 9.8, this vulnerability is easily exploitable over a network with low attack complexity, potentially resulting in complete system compromise (confidentiality, integrity, and availability). Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 8.37CPE matchmatch criteria | cpe:2.3:a:pcre:perl_compatible_regular_expression_library:*:*:*:*:*:*:*:* | ||
22CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* | ||
>= 5.5.0, < 5.5.32CPE matchmatch criteria | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | ||
>= 5.6.0, < 5.6.18CPE matchmatch criteria | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | ||
>= 7.0.0, < 7.0.3CPE matchmatch criteria | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.