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.
7.5	$0-$5k	0.00

A vulnerability was found in pngdefry up to 2017-03-22. It has been classified as critical. This affects the function process of the file pngdefry.c of the component PNG File Handler. 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:

pngdefry through 2017-03-22 is prone to a heap-based buffer-overflow vulnerability because it fails to properly process a specially crafted png file. This issue affects the 'process()' function of the 'pngdefry.c' source file.

The bug was discovered 03/22/2017. The weakness was published 03/22/2017 by AromalUllas (Website). The advisory is shared at securityfocus.com. This vulnerability is uniquely identified as CVE-2017-7231 since 03/22/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

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

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 97037†). Similar entries are available at VDB-51072, VDB-66884, VDB-99353 and VDB-109326.

Productinfo

Name

• pngdefry

Version

• 2017-03-22

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: No
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

03/22/2017 🔍
03/22/2017 +0 days 🔍
03/22/2017 +0 days 🔍
03/22/2017 +0 days 🔍
03/23/2017 +1 days 🔍
03/23/2017 +0 days 🔍
09/11/2020 +1268 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: AromalUllas
Status: Not defined

CVE: CVE-2017-7231 (🔍)
SecurityFocus: 97037 - pngdefry CVE-2017-7231 Heap Based Buffer Overflow Vulnerability
OSVDB: - CVE-2017-7231 - pngdefry - Buffer Overflow Issue

See also: 🔍

Entryinfo

Created: 03/23/2017 07:57 AM
Updated: 09/11/2020 06:46 AM
Changes: 03/23/2017 07:57 AM (59), 09/11/2020 06:46 AM (5)
Complete: 🔍
Cache ID: 98:243:40

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