Ruby up to 2.2.7/2.3.4/2.4.1 generator.c Memory memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Ruby up to 2.2.7/2.3.4/2.4.1. This vulnerability affects unknown code of the file ext/json/ext/generator/generator.c. The manipulation results in memory corruption (Memory). This vulnerability is reported as CVE-2017-14064. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Ruby up to 2.2.7/2.3.4/2.4.1 (Programming Language Software). Affected is an unknown part of the file ext/json/ext/generator/generator.c. The manipulation with an unknown input leads to a memory corruption vulnerability (Memory). CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality. CVE summarizes:

Ruby through 2.2.7, 2.3.x through 2.3.4, and 2.4.x through 2.4.1 can expose arbitrary memory during a JSON.generate call. The issues lies in using strdup in ext/json/ext/generator/generator.c, which will stop after encountering a '\0' byte, returning a pointer to a string of length zero, which is not the length stored in space_len.

The bug was discovered 08/31/2017. The weakness was disclosed 08/31/2017 (Website). The advisory is shared for download at securitytracker.com. This vulnerability is traded as CVE-2017-14064 since 08/31/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 103472 (Debian DLA-1114-1 : ruby1.9.1 security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176143 (Debian Security Update for ruby2.3 (DSA 3966-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (103472), SecurityFocus (BID 100890†) and CERT Bund (WID-SEC-2026-1420). The entries VDB-106048, VDB-106049, VDB-106050 and VDB-106051 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Open Source CentOS
  • Debian Linux
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source Ruby

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Memory
Class: Memory corruption / Memory
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 103472
Nessus Name: Debian DLA-1114-1 : ruby1.9.1 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53376
OpenVAS Name: Debian Security Advisory DSA 3966-1 (ruby2.3 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: github.com

Timelineinfo

08/31/2017 🔍
08/31/2017 +0 days 🔍
08/31/2017 +0 days 🔍
08/31/2017 +0 days 🔍
08/31/2017 +0 days 🔍
08/31/2017 +0 days 🔍
09/26/2017 +26 days 🔍
09/27/2017 +1 days 🔍
05/10/2026 +3147 days 🔍

Sourcesinfo

Advisory: RHSA-2017:3485⛔
Researcher: ahmadsherif
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-14064 (🔍)
GCVE (CVE): GCVE-0-2017-14064
GCVE (VulDB): GCVE-100-106032

OVAL: 🔍

SecurityFocus: 100890 - Ruby CVE-2017-14064 Arbitrary Memory Disclosure Vulnerability
SecurityTracker: 1039363
CERT Bund: WID-SEC-2026-1420 - Ruby: Schwachstelle ermöglicht Offenlegung von Informationen

See also: 🔍

Entryinfo

Created: 08/31/2017 22:50
Updated: 05/10/2026 11:47
Changes: 08/31/2017 22:50 (70), 11/12/2019 13:46 (12), 01/10/2021 13:37 (3), 01/10/2021 13:42 (1), 12/27/2022 14:00 (4), 05/10/2026 11:47 (24)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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