CVE-2019-13224

Advisory lineage Upstream: 0 Downstream: 15
Modified
Published: 10 Jul 2019, 13:50
Last modified:04 Aug 2024, 23:49

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.1 (nvd)
EPSS Score
0.54% LOW
1% probability -0.01%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Jul 2019, 13:50
Published
Vulnerability first disclosed
04 Aug 2024, 23:49
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.54%• Percentile: 68%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • canonical•ubuntu_linux

    12.04 | 14.04

  • debian•debian_linux

    8.0

  • fedoraproject•fedora

    29 | 30

  • oniguruma_project•oniguruma

    6.9.2

  • Unknown•PHP

    ≥ 7.1.0, < 7.1.32 | ≥ 7.2.0, < 7.2.23 | ≥ 7.3.0, < 7.3.9

References (8)