CVE catalog
CVE-2019-19203
libonig: CVE-2019-19203
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 4.05% · Oct 25, 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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libonig | sid | 6.9.10-1 | fixed |
| Debian | libonig | forky | 6.9.10-1 | fixed |
| Debian | libonig | trixie | 6.9.9-1 | fixed |
| Debian | libonig | bookworm | 6.9.8-1 | fixed |
| Ubuntu | libonig | pro | 6.5.0-1 | vulnerable |
| Ubuntu | libonig | pro | 6.6.1-1 | vulnerable |
| Ubuntu | libonig | pro | 6.7.0-1 | vulnerable |
| Ubuntu | libonig | pro | 6.7.0-1ubuntu0.1~esm1 | vulnerable |
| Ubuntu | libonig | pro | 6.7.0-1ubuntu0.1~esm2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libonig | source | sid | 6.9.4-1 | low | Not reported | [945312] |
| Debian | libonig | source | forky | 6.9.4-1 | low | Not reported | [945312] |
| Debian | libonig | source | trixie | 6.9.4-1 | low | Not reported | [945312] |
| Debian | libonig | source | bookworm | 6.9.4-1 | low | Not reported | [945312] |
| Ubuntu | libonig | deb | pro | 6.7.0-1ubuntu0.1~esm2 | Not reported | UBUNTU-CVE-2019-19203 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libonig5]Fixed
Source package: [libonig]
Details (2)
6.9.8-1· amd64 · bookwormFixed · Fixed:
6.9.4-1dsa · libonig · debian · bookworm; dsa · libonig · debian · 12
6.9.8-1· arm64 · bookwormFixed · Fixed:
6.9.4-1dsa · libonig · debian · bookworm; dsa · libonig · debian · 12
- [libonig-dev]Fixed
Source package: [libonig]
Details (2)
6.9.8-1· amd64 · bookwormFixed · Fixed:
6.9.4-1dsa · libonig · debian · bookworm; dsa · libonig · debian · 12
6.9.8-1· arm64 · bookwormFixed · Fixed:
6.9.4-1dsa · libonig · debian · bookworm; dsa · libonig · debian · 12
[Debian 13 (Trixie)]
- [libonig5]Fixed
Source package: [libonig]
Details (2)
6.9.9-1+b1· amd64 · trixieFixed · Fixed:
6.9.4-1dsa · libonig · debian · 13
6.9.9-1+b1· arm64 · trixieFixed · Fixed:
6.9.4-1dsa · libonig · debian · 13
- [libonig-dev]Fixed
Source package: [libonig]
Details (2)
6.9.9-1+b1· amd64 · trixieFixed · Fixed:
6.9.4-1dsa · libonig · debian · 13
6.9.9-1+b1· arm64 · trixieFixed · Fixed:
6.9.4-1dsa · libonig · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2020_3662.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-19203]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-19203]
- [https://security-tracker.debian.org/tracker/CVE-2019-19203]
- [https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-19203.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-0218.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]