CVE-2019-13224

CRITICAL
9.8
CVSS Score
Published: July 10, 2019 at 01:50 PM UTC
Updated: June 17, 2026 at 02:16 AM UTC
5 products affected across 5 vendorsDebian LinuxFedoraUbuntu Linux

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Severity
CRITICAL9.8
Exploit prediction
EPSS 4%

Description

A use-after-free in onig_new_deluxe() in regext.c in Oniguruma 6.9.2 allows attackers to potentially cause information disclosure, denial of service, or possibly code execution by providing a crafted regular expression. The attacker provides a pair of a regex pattern and a string, with a multi-byte encoding that gets handled by onig_new_deluxe(). Oniguruma issues often affect Ruby, as well as common optional libraries for PHP and Rust.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

PHP· PHPdrupal
95%
7.1.0 ≤ v < 7.1.327.2.0 ≤ v < 7.2.237.3.0 ≤ v < 7.3.9
Affected range stops below 7.1.32, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.2.23, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.3.9, so it looks safe — our inference, not a vendor statement

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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