CVE-2019-19203 | Mend Vulnerability Database

Vulnerability DatabaseCVE-2019-19203

CVE-2019-19203

Published:November 21, 2019

Updated:May 17, 2026

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.

Related Resources (11)

https://people.canonical.com/~ubuntu-security/cve/CVE-2019-19203

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NO267PLHGYZSWX3XTRPKYBKD4J3YOU5V/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NO267PLHGYZSWX3XTRPKYBKD4J3YOU5V/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3MBNW6Z4DOXSCNWGBLQ7OA3OGUJ44WL/

https://access.redhat.com/security/cve/CVE-2019-19203

https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2

https://security-tracker.debian.org/tracker/CVE-2019-19203

https://github.com/tarantula-team/CVE-2019-19203

https://github.com/kkos/oniguruma/issues/163

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V3MBNW6Z4DOXSCNWGBLQ7OA3OGUJ44WL/

https://github.com/ManhNDd/CVE-2019-19203