Description
An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function gb18030_mbc_enc_len in file gb18030.c, a UChar pointer is dereferenced without checking if it passed the end of the matched string. This leads to a heap-based buffer over-read.
Exploits (2)
References (6)
Core 6
Core References
Release Notes x_refsource_misc
https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2
Exploit, Patch, Third Party Advisory x_refsource_misc
https://github.com/kkos/oniguruma/issues/163
Exploit, Third Party Advisory x_refsource_misc
https://github.com/ManhNDd/CVE-2019-19203
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NO267PLHGYZSWX3XTRPKYBKD4J3YOU5V/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3MBNW6Z4DOXSCNWGBLQ7OA3OGUJ44WL/
Third Party Advisory x_refsource_misc
https://github.com/tarantula-team/CVE-2019-19203
Scores
CVSS v3
7.5
EPSS
0.0073
EPSS Percentile
72.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (4)
fedoraproject/fedora
30
fedoraproject/fedora
31
oniguruma_project/oniguruma
6.9.4 rc1
oniguruma_project/oniguruma
6.0.0 - 6.9.4
Published
Nov 21, 2019
Tracked Since
Feb 18, 2026