SB2019090921 - Resource exhaustion in K.Kosako Oniguruma
Published: September 9, 2019 Updated: July 17, 2020
Security Bulletin ID
SB2019090921
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2019-16163)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
Oniguruma before 6.9.3 allows Stack Exhaustion in regcomp.c because of recursion in regparse.c.
Remediation
Install update from vendor's website.
References
- https://github.com/kkos/oniguruma/commit/4097828d7cc87589864fecf452f2cd46c5f37180
- https://github.com/kkos/oniguruma/compare/v6.9.2...v6.9.3
- https://github.com/kkos/oniguruma/issues/147
- https://lists.debian.org/debian-lts-announce/2019/09/msg00010.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NWOWZZNFSAWM3BUTQNAE3PD44A6JU4KE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZW47MSFZ6WYOAOFXHBDGU4LYACFRKC2Y/