SWFTools 0.9.2 lib/modules/swfbits.c swf_DefineLosslessBitsTagToImage null pointer dereference

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.

A vulnerability was found in SWFTools 0.9.2 (Programming Tool Software). It has been declared as problematic. Affected by this vulnerability is the function swf_DefineLosslessBitsTagToImage in the library lib/modules/swfbits.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

The swf_DefineLosslessBitsTagToImage function in lib/modules/swfbits.c in SWFTools 0.9.2 mishandles an uncompress failure, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) because of extractDefinitions in lib/readers/swf.c and fill_line_bitmap in lib/devices/render.c, as demonstrated by swfrender.

The bug was discovered 11/09/2017. The weakness was disclosed 11/09/2017 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2017-16711 since 11/09/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

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

The entry VDB-206546 is pretty similar.






CPE 2.3info

CPE 2.2info


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


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: 🔍



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

NVD Base Score: 🔍


Class: Null pointer dereference
CWE: CWE-476 / CWE-404

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

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


Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍


11/09/2017 🔍
11/09/2017 +0 days 🔍
11/09/2017 +0 days 🔍
11/09/2017 +0 days 🔍
11/09/2017 +0 days 🔍
11/10/2017 +1 days 🔍
01/10/2023 +1887 days 🔍


Advisory: 46
Researcher: binsh fpbibi
Status: Not defined

CVE: CVE-2017-16711 (🔍)
SecurityFocus: 101797 - SWFTools 'swfbits.c' Remote Denial of Service Vulnerability

See also: 🔍


Created: 11/10/2017 12:37 PM
Updated: 01/10/2023 08:35 AM
Changes: 11/10/2017 12:37 PM (58), 12/05/2019 02:05 PM (3), 01/23/2021 10:10 AM (3), 01/10/2023 08:35 AM (2)
Complete: 🔍
Cache ID: 34:B8F:40


No comments yet. Languages: en.

Please log in to comment.

Do you want to use VulDB in your project?

Use the official API to access entries easily!