CVE-2019-19203

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 70%
VendorProductVersion
oniguruma_projectoniguruma
6.0.0 ≤
𝑥
< 6.9.4
oniguruma_projectoniguruma
6.9.4:rc1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libonig
bullseye
6.9.6-1.1
fixed
buster
no-dsa
jessie
ignored
bookworm
6.9.8-1
fixed
sid
6.9.9-1
fixed
trixie
6.9.9-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libonig
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
not-affected
eoan
ignored
disco
ignored
bionic
Fixed 6.7.0-1ubuntu0.1~esm2
released
xenial
Fixed 5.9.6-1ubuntu0.1+esm3
released
trusty
Fixed 5.9.1-1ubuntu1.1+esm3
released
Common Weakness Enumeration
References
https://github.com/ManhNDd/CVE-2019-19203
https://github.com/kkos/oniguruma/issues/163
https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2
https://github.com/tarantula-team/CVE-2019-19203
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://github.com/ManhNDd/CVE-2019-19203
https://github.com/kkos/oniguruma/issues/163
https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2
https://github.com/tarantula-team/CVE-2019-19203
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/