mackyle xar 1.6.1 lib/archive.c xar_unserialize null pointer dereference

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.
3.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in mackyle xar 1.6.1. It has been rated as problematic. Affected by this issue is the function xar_unserialize in the library lib/archive.c. The manipulation leads to null pointer dereference. This vulnerability is listed as CVE-2018-17094. The attack must be carried out locally. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in mackyle xar 1.6.1. This issue affects the function xar_unserialize in the library lib/archive.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

An issue has been discovered in mackyle xar 1.6.1. There is a NULL pointer dereference in xar_unserialize in lib/archive.c.

The bug was discovered 07/25/2018. The weakness was presented 09/16/2018 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2018-17094 since 09/16/2018. The attack may be initiated remotely. No form of authentication is needed for a successful 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 53 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.

See VDB-124102 for similar entry. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

mackyle

Name

Version

1.6.1

Website

Product: https://github.com/mackyle/xar/

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined
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

07/25/2018 🔍
09/16/2018 +52 days 🔍
09/16/2018 +0 days 🔍
09/16/2018 +0 days 🔍
09/17/2018 +1 days 🔍
05/16/2023 +1702 days 🔍

Sourcesinfo

Product: github.com

Advisory: 20
Status: Not defined

CVE: CVE-2018-17094 (🔍)
GCVE (CVE): GCVE-0-2018-17094
GCVE (VulDB): GCVE-100-124103
See also: 🔍

Entryinfo

Created: 09/17/2018 06:49
Updated: 05/16/2023 13:38
Changes: 09/17/2018 06:49 (43), 03/24/2020 10:06 (7), 05/16/2023 13:38 (3)
Complete: 🔍
Cache ID: 216::103