PT-2017-2568 · Ruby+1 · Ruby+1

Fumfel · Published 2017-07-19 · Updated 2017-09-16 · CVE-2017-11465

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Ruby versions 2.4.1

Description The issue is related to a buffer overflow in the parser yyerror function of the UTF-8 parser in the Ruby interpreter. This can be exploited by a remote attacker using a specially crafted Ruby script that interacts with the parser tokadd utf8 function, potentially leading to a denial of service or bypassing the $SAFE protection mechanism.

Recommendations For Ruby version 2.4.1, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Buffer Overflow

Out of bounds Read

Memory Corruption

Weakness Enumeration

CWE-119

CWE-125

CWE-787

Related Identifiers

ALT-PU-2017-2216

BDU:2017-01780

CVE-2017-11465

Affected Products

Alt Linux

Ruby

References · 18

• https://osv.dev/vulnerability/CVE-2017-11465 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-0898 · Security Note
• https://bdu.fstec.ru/vul/2017-01780 · Security Note
• https://errata.altlinux.org/ALT-PU-2017-2216 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-11465 · Security Note
• https://bdu.fstec.ru/vul/2017-02182 · Security Note
• https://bugs.ruby-lang.org/issues/13742 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14064 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14033 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10784 · Security Note
• https://bdu.fstec.ru/vul/2017-02342 · Security Note
• https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/59344 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11465 · Security Note
• https://github.com/mruby/mruby/issues/3722 · Note
• https://hackerone.com/reports/212241 · Note