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HIGH

CVE-2019-19204

CVSS v3

7.5

HIGH

EPSS Score

6.9 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • apcu-panelAlmaLinux:8all versions · fixed in 5.1.17-1.module_el8.3.0+2009+b272fdef
  • libzipAlmaLinux:8all versions · fixed in 1.5.2-1.module_el8.4.0+2229+b272fdef
  • libzip-develAlmaLinux:8all versions · fixed in 1.5.2-1.module_el8.5.0+152+112d3b8c
  • libzip-toolsAlmaLinux:8all versions · fixed in 1.5.2-1.module_el8.3.0+2009+b272fdef
  • onigurumaAlmaLinux:8all versions · fixed in 6.8.2-2.1.el8_9and 1 other package
  • phpAlmaLinux:8all versions · fixed in 7.3.20-1.module_el8.3.0+2009+b272fdefand 7 other packages
  • php-dbaAlmaLinux:8all versions · fixed in 7.3.20-1.module_el8.4.0+2229+b272fdefand 9 other packages
  • php-gdAlmaLinux:8all versions · fixed in 7.3.20-1.module_el8.5.0+152+112d3b8cand 8 other packages

6 more package ranges on OSV.dev

Vendor advisories

  • CVE-2019-19204 Red Hat Product Security698 products fixed · 159 known affected

    oniguruma: Heap-based buffer over-read in function fetch_interval_quantifier in regparse.c

    php.src as a component of Red Hat Enterprise Linux 5 · php53.src as a component of Red Hat Enterprise Linux 5 · oniguruma-devel as a component of Red Hat Enterprise Linux 6

  • RHSA-2024:0889 Red Hat Product Security31 products fixed

    Red Hat Security Advisory: oniguruma security update

  • RHSA-2024:0572 Red Hat Product Security31 products fixed

    Red Hat Security Advisory: oniguruma security update

  • RHSA-2024:0409 Red Hat Product Security31 products fixed

    Red Hat Security Advisory: oniguruma security update

  • RHSA-2020:5275 Red Hat Product Security304 products fixed

    Red Hat Security Advisory: rh-php73-php security, bug fix, and enhancement update

  • RHSA-2020:3662 Red Hat Product Security301 products fixed

    Red Hat Security Advisory: php:7.3 security, bug fix, and enhancement update

Full record on NVD

Description

An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function fetch_interval_quantifier (formerly known as fetch_range_quantifier) in regparse.c, PFETCH is called without checking PEND. This leads to a heap-based buffer over-read.

Technical details

Published
2019-11-21

Frequently asked questions

What is CVE-2019-19204?

An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function fetch_interval_quantifier (formerly known as fetch_range_quantifier) in regparse.c, PFETCH is called without checking PEND. This leads to a heap-based buffer over-read.

Is CVE-2019-19204 actively exploited?

Active exploitation of CVE-2019-19204 has not been confirmed. Its EPSS score was 6.9% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-19204?

CVE-2019-19204 has a CVSS v3 base score of 7.5 (HIGH severity).

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