VDB-103479 · CVE-2017-11189 · GCVE-0-2017-11189

unrar-free 0.0.1 unrarlib.c 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.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in unrar-free 0.0.1. It has been classified as problematic. This affects an unknown part in the library unrarlib.c. Performing a manipulation results in null pointer dereference. This vulnerability is cataloged as CVE-2017-11189. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in unrar-free 0.0.1. It has been classified as problematic. This affects an unknown code block in the library unrarlib.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

unrarlib.c in unrar-free 0.0.1 might allow remote attackers to cause a denial of service (NULL pointer dereference and application crash), which could be relevant if unrarlib is used as library code for a long-running application.

The bug was discovered 07/07/2017. The weakness was shared 07/12/2017 (Website). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2017-11189 since 07/12/2017. 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 of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 5 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.

The entry VDB-103480 is related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

unrar-free

Version

0.0.1

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: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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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: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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

07/07/2017 🔍
07/12/2017 +5 days 🔍
07/12/2017 +0 days 🔍
07/12/2017 +0 days 🔍
07/12/2017 +0 days 🔍
10/25/2019 +835 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2017-11189 (🔍)
GCVE (CVE): GCVE-0-2017-11189
GCVE (VulDB): GCVE-100-103479
See also: 🔍

Entryinfo

Created: 07/12/2017 23:32
Updated: 10/25/2019 09:48
Changes: 07/12/2017 23:32 (56), 10/25/2019 09:48 (1)
Complete: 🔍
Cache ID: 216::103