Vulnerability identifier: #VU38674
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Ruby
Universal components / Libraries /
Scripting languages
Vendor: Ruby
Description
The vulnerability allows attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (invalid write or read) or possibly have unspecified other impact via a crafted Ruby script, related to the parser_tokadd_utf8 function in parse.y.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Ruby: 2.4.1
External links
http://bugs.ruby-lang.org/issues/13742
http://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/59344
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.