SB2017040314 - Input validation error in Ruby
Published: April 3, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017040314
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) Input validation error (CVE-ID: CVE-2017-6181)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The parse_char_class function in regparse.c in the Onigmo (aka Oniguruma-mod) regular expression library, as used in Ruby 2.4.0, allows remote attackers to cause a denial of service (deep recursion and application crash) via a crafted regular expression.
Remediation
Install update from vendor's website.