CVE-2019-19204 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://github.com/kkos/oniguruma/issues/162 https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2 https://github.com/ManhNDd/CVE-2019-19204 https://github.com/tarantula-team/CVE-2019-19204 https://lists.debian.org/debian-lts-announce/2019/12/msg00002.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NO267PLHGYZSWX3XTRPKYBKD4J3YOU5V/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V3MBNW6Z4DOXSCNWGBLQ7OA3OGUJ44WL/ https://usn.ubuntu.com/4460-1/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5