SB2019112922 - Fedora 30 update for oniguruma

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Buffer Over-read (CVE-ID: CVE-2019-19204)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists in the "fetch_interval_quantifier" function (formerly known as fetch_range_quantifier) in "regparse.c" file due to the PFETCH is called without checking PEND. A remote attacker can cause a denial of service condition on the target system.

2) Buffer Over-read (CVE-ID: CVE-2019-19203)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists in the "gb18030_mbc_enc_len" function in "gb18030.c" file due to the UChar pointer is dereferenced without checking if it passed the end of the matched string. A remote attacker can cause a denial of service condition on the target system.

3) Integer overflow (CVE-ID: CVE-2019-19012)

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to integer overflow in the "search_in_range" function in "regexec.c". A remote attacker can use a specially crafted regular expression, trigger out-of-bounds read and cause a denial-of-service or information disclosure on the target system.

Remediation

Install update from vendor's website.

References

• https://bodhi.fedoraproject.org/updates/FEDORA-2019-73197ff9a0