Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Oniguruma Project | Oniguruma | >= 6.0.0, < 6.9.4 |
| Fedoraproject | Fedora | 30 |
Related Weaknesses (CWE)
References
- https://github.com/ManhNDd/CVE-2019-19203ExploitThird Party Advisory
- https://github.com/kkos/oniguruma/issues/163ExploitPatchThird Party Advisory
- https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2Release Notes
- https://github.com/tarantula-team/CVE-2019-19203Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://github.com/ManhNDd/CVE-2019-19203ExploitThird Party Advisory
- https://github.com/kkos/oniguruma/issues/163ExploitPatchThird Party Advisory
- https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2Release Notes
- https://github.com/tarantula-team/CVE-2019-19203Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2019-19203?
CVE-2019-19203 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 s...
How severe is CVE-2019-19203?
CVE-2019-19203 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-19203?
Check the references section above for vendor advisories and patch information. Affected products include: Oniguruma Project Oniguruma, Fedoraproject Fedora.