Ox Gem 2.8.1 on Ruby sax_buf.c read_from_str memory corruption

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in Ox Gem 2.8.1 on Ruby. Affected by this issue is the function read_from_str of the file sax_buf.c. Performing a manipulation results in memory corruption. This vulnerability is cataloged as CVE-2017-16229. The attack must be initiated from a local position. There is no exploit available.

Detailsinfo

A vulnerability was found in Ox Gem 2.8.1 on Ruby (Ruby Gem). It has been classified as critical. This affects the function read_from_str of the file sax_buf.c. The manipulation with an unknown input leads to a memory corruption vulnerability. 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, integrity, and availability. The summary by CVE is:

In the Ox gem 2.8.1 for Ruby, the process crashes with a stack-based buffer over-read in the read_from_str function in sax_buf.c when a crafted input is supplied to sax_parse.

The bug was discovered 10/29/2017. The weakness was shared 02/26/2018 (Website). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2017-16229 since 10/29/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 120 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Ruby Gem

Name

Ox Gem

Version

2.8.1

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/29/2017 🔍
10/29/2017 +0 days 🔍
02/26/2018 +120 days 🔍
02/26/2018 +0 days 🔍
02/27/2018 +1 days 🔍
02/10/2023 +1809 days 🔍

Sourcesinfo

Advisory: 195
Status: Not defined

CVE: CVE-2017-16229 (🔍)
GCVE (CVE): GCVE-0-2017-16229
GCVE (VulDB): GCVE-100-113829

Entryinfo

Created: 02/27/2018 07:47
Updated: 02/10/2023 11:06
Changes: 02/27/2018 07:47 (58), 01/08/2020 15:56 (1), 02/10/2023 11:06 (3)
Complete: 🔍
Cache ID: 216::103