CVE-2019-13224 describes a critical use-after-free vulnerability in Oniguruma 6.9.2, specifically within the onig_new_deluxe() function, affecting products like Canonical, Debian, Fedora, Oniguruma Project, and PHP. This flaw allows an unauthenticated attacker to trigger information disclosure, denial of service, or potentially arbitrary code execution by supplying a specially crafted regular expression and string with a multi-byte encoding. With a CVSS score of 9.8 (Critical), the attack complexity is low, requiring no user interaction. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
6.9.2CPE matchmatch criteria | cpe:2.3:a:oniguruma_project:oniguruma:6.9.2:-:*:*:*:*:*:* | ||
>= 7.1.0, < 7.1.32CPE matchmatch criteria | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | ||
>= 7.2.0, < 7.2.23CPE matchmatch criteria | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | ||
>= 7.3.0, < 7.3.9CPE matchmatch criteria | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | ||
29CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* |
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
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.