VulnerabilityModified
CVE-2019-19203
An issue was discovered in Oniguruma 6.x before 6.9.4_rc2.
HIGH 7.5EPSS 4.05%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.05%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 4.05% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- oniguruma project/oniguruma · fedoraproject/fedora
- Source
- cve@mitre.org
References
- https://github.com/ManhNDd/CVE-2019-19203Exploit, Third Party Advisory
- https://github.com/kkos/oniguruma/issues/163Exploit, Patch, Third 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.fedoraproject.org/message/NO267PLHGYZSWX3XTRPKYBKD4J3YOU5V/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3MBNW6Z4DOXSCNWGBLQ7OA3OGUJ44WL/
- https://github.com/ManhNDd/CVE-2019-19203Exploit, Third Party Advisory
- https://github.com/kkos/oniguruma/issues/163Exploit, Patch, Third 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.fedoraproject.org/message/NO267PLHGYZSWX3XTRPKYBKD4J3YOU5V/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3MBNW6Z4DOXSCNWGBLQ7OA3OGUJ44WL/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.