Artifex MuJS prior 5c337af4b3df80cf967e4f9f6a21522de84b392a Rp_toString use after free

CVSS Meta Temp Score
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Artifex MuJS. Impacted is the function Rp_toString. Such manipulation leads to use after free. This vulnerability is traded as CVE-2016-7504. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Artifex MuJS and classified as very critical. Affected by this issue is the function Rp_toString. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A use-after-free vulnerability was observed in Rp_toString function of Artifex Software, Inc. MuJS before 5c337af4b3df80cf967e4f9f6a21522de84b392a. A successful exploitation of this issue can lead to code execution or denial of service condition.

The weakness was shared 10/29/2016 by puzzor (Website). The advisory is shared for download at bugs.ghostscript.com. This vulnerability is handled as CVE-2016-7504 since 09/09/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/28/2022).

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 5c337af4b3df80cf967e4f9f6a21522de84b392a eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (95458) and SecurityFocus (BID 94241†). The entries VDB-93165, VDB-93166, VDB-93184 and VDB-93588 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: MuJS 5c337af4b3df80cf967e4f9f6a21522de84b392a

Timelineinfo

09/09/2016 🔍
10/28/2016 +49 days 🔍
10/28/2016 +0 days 🔍
10/29/2016 +1 days 🔍
10/29/2016 +0 days 🔍
12/01/2016 +33 days 🔍
12/02/2016 +1 days 🔍
09/28/2022 +2126 days 🔍

Sourcesinfo

Vendor: artifex.com

Advisory: FEDORA-2016-2edfd75312
Researcher: puzzor
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-7504 (🔍)
GCVE (CVE): GCVE-0-2016-7504
GCVE (VulDB): GCVE-100-93164
SecurityFocus: 94241 - MuJS Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 10/29/2016 19:06
Updated: 09/28/2022 18:36
Changes: 10/29/2016 19:06 (64), 05/20/2019 00:06 (14), 09/28/2022 18:36 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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