Artifex MuJS prior 5008105780c0b0182ea6eda83ad5598f225be3ee null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

A vulnerability was found in Artifex MuJS. It has been classified as critical. Affected is an unknown code block. 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. CVE summarizes:

Artifex Software, Inc. MuJS before 5008105780c0b0182ea6eda83ad5598f225be3ee allows context-dependent attackers to conduct "denial of service (application crash)" attacks by using the "malformed labeled break/continue in JavaScript" approach, related to a "NULL pointer dereference" issue affecting the jscompile.c component.

The bug was discovered 09/29/2016. The weakness was presented 11/12/2016 by puzzor (Website). The advisory is shared for download at bugs.ghostscript.com. This vulnerability is traded as CVE-2016-9294 since 11/11/2016. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 43 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 95458 (Fedora 23 : mujs / zathura-pdf-mupdf (2016-2edfd75312)), 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.

Upgrading to version 5008105780c0b0182ea6eda83ad5598f225be3ee 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 Tenable (95458) and SecurityFocus (BID 94293†). See VDB-93164, VDB-93165, VDB-93166 and VDB-93184 for similar entries.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 95458
Nessus Name: Fedora 23 : mujs / zathura-pdf-mupdf (2016-2edfd75312)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 871109
OpenVAS Name: Fedora Update for mujs FEDORA-2016-49a72fb9bd
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: MuJS 5008105780c0b0182ea6eda83ad5598f225be3ee
Patch: 5008105780c0b0182ea6eda83ad5598f225be3ee

Timelineinfo

09/29/2016 🔍
11/11/2016 +43 days 🔍
11/11/2016 +0 days 🔍
11/12/2016 +1 days 🔍
11/12/2016 +0 days 🔍
11/14/2016 +2 days 🔍
12/01/2016 +17 days 🔍
12/02/2016 +1 days 🔍
10/03/2022 +2131 days 🔍

Sourcesinfo

Vendor: artifex.com

Advisory: bugs.ghostscript.com
Researcher: puzzor
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-9294 (🔍)
SecurityFocus: 94293 - MuJS CVE-2016-9294 Null Pointer Deference Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 11/12/2016 10:01 AM
Updated: 10/03/2022 09:23 AM
Changes: 11/12/2016 10:01 AM (62), 05/30/2019 03:53 PM (16), 10/03/2022 09:23 AM (5)
Complete: 🔍
Cache ID: 18:51C:40

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