Artifex MuJS up to 1.0.2 jsparse.c Binary Expression resource management

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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.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Artifex MuJS up to 1.0.2. This impacts an unknown function of the file jsparse.c. Performing a manipulation as part of Binary Expression results in resource management. This vulnerability is reported as CVE-2018-5759. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Artifex MuJS up to 1.0.2. It has been classified as problematic. This affects an unknown functionality of the file jsparse.c. The manipulation as part of a Binary Expression leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

jsparse.c in Artifex MuJS through 1.0.2 does not properly maintain the AST depth for binary expressions, which allows remote attackers to cause a denial of service (excessive recursion) via a crafted file.

The bug was discovered 01/24/2018. The weakness was disclosed 01/24/2018 (Website). It is possible to read the advisory at git.ghostscript.com. This vulnerability is uniquely identified as CVE-2018-5759 since 01/17/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 106829 (Fedora 26 : mujs (2018-d4746c772f)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277210 (Fedora Security Update for mujs (FEDORA-2018-5b2e981f14)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (43904), Tenable (106829) and SecurityFocus (BID 102833†). The entry VDB-112413 is pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Artifex

Name

MuJS

Version

License

commercial

Website

Vendor: https://artifex.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 106829
Nessus Name: Fedora 26 : mujs (2018-d4746c772f)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 900723
OpenVAS Name: Fedora Update for mujs FEDORA-2018-5b2e981f14
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: 4d45a96e57fbabf00a7378b337d0ddcace6f38c1

Timelineinfo

01/17/2018 🔍
01/24/2018 +6 days 🔍
01/24/2018 +0 days 🔍
01/24/2018 +0 days 🔍
01/24/2018 +0 days 🔍
01/25/2018 +1 days 🔍
02/14/2018 +20 days 🔍
02/15/2018 +1 days 🔍
12/30/2024 +2510 days 🔍