National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-0898 Detail

Current Description

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.

Source:  MITRE      Last Modified:  09/21/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-0898
Original release date:
09/15/2017
Last revised:
12/19/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
9.1 Critical
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H (legend)
Impact Score:
5.2
Exploitability Score:
3.9
CVSS Version 3 Metrics:
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
High
CVSS Severity (version 2.0):
CVSS v2 Base Score:
6.4 MEDIUM
Vector:
(AV:N/AC:L/Au:N/C:P/I:N/A:P) (legend)
Impact Subscore:
4.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://www.securityfocus.com/bid/100862 Third Party Advisory; VDB Entry External Source BID 100862
http://www.securitytracker.com/id/1039363 Third Party Advisory; VDB Entry External Source SECTRACK 1039363
https://access.redhat.com/errata/RHSA-2017:3485 External Source REDHAT RHSA-2017:3485
https://github.com/mruby/mruby/issues/3722 Exploit; Third Party Advisory External Source MISC https://github.com/mruby/mruby/issues/3722
https://hackerone.com/reports/212241 Exploit; Third Party Advisory External Source MISC https://hackerone.com/reports/212241
https://security.gentoo.org/glsa/201710-18 External Source GENTOO GLSA-201710-18
https://www.debian.org/security/2017/dsa-4031 External Source DEBIAN DSA-4031
https://www.ruby-lang.org/en/news/2017/09/14/sprintf-buffer-underrun-cve-2017-0898/ Vendor Advisory External Source MISC https://www.ruby-lang.org/en/news/2017/09/14/sprintf-buffer-underrun-cve-2017-0898/

Technical Details

Vulnerability Type (View All)

  • Format String Vulnerability (CWE-134)

Change History 7 change records found - show changes