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.

References

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

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

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

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

https://lists.fedoraproject.org/archives/list/[email protected]/message/NO267PLHGYZSWX3XTRPKYBKD4J3YOU5V/

https://lists.fedoraproject.org/archives/list/[email protected]/message/V3MBNW6Z4DOXSCNWGBLQ7OA3OGUJ44WL/

Details

Risk Information

CVSS v2

CVSS v3