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CVE

CVE-2017-0898

Ruby before 2.4.2, 2.3.5, and 2.2.8 is vulnerable to a malicious format string which contains a precious specifier (*) w

Ruby before 2.4.2, 2.3.5, and 2.2.8 is vulnerable to a malicious format string which contains a precious specifier (*) with a huge minus value. Such situation can lead to a buffer overrun, resulting in a heap memory corruption or an information disclosure from the heap.

CRITICAL · CVSS 9.1 EPSS 0.01399
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules3 YARA rules0

Affected Products & Versions

1
ruby-lang rubyall versions

Public Exploits & PoCs

2
pocgithub.com · 3722github.com
pochackerone.com · 212241hackerone.com

Sigma Hunt Rules

3
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumRuby on Rails Framework Exceptions
productmediumPotential Ruby Reverse Shell
productmediumRuby Inline Command Execution

Scoring & Timeline

9.1
CRITICAL · CVSS v3.0 · support@hackerone.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD15 Sep 2017 · 07:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Vendor Advisories

7
suse-csafSUSE-SU-2020:1570-1
🔗

References & Sources

7
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