Artifex MuPDF 1.12.0 fz_keep_key_storable use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Artifex MuPDF 1.12.0. Affected by this vulnerability is the function fz_keep_key_storable. Performing a manipulation results in use after free. This vulnerability is identified as CVE-2018-1000051. The attack is only possible with local access. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Artifex MuPDF 1.12.0 (Document Reader Software). It has been classified as problematic. This affects the function fz_keep_key_storable. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Artifex Mupdf version 1.12.0 contains a Use After Free vulnerability in fz_keep_key_storable that can result in DOS / Possible code execution. This attack appear to be exploitable via Victim opens a specially crafted PDF.

The bug was discovered 12/19/2017. The weakness was released 02/09/2018 (Website). It is possible to read the advisory at bugs.ghostscript.com. This vulnerability is uniquely identified as CVE-2018-1000051 since 02/05/2018. 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 52 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 106862 (openSUSE Security Update : mupdf (openSUSE-2018-167)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277169 (Fedora Security Update for mupdf (FEDORA-2018-da6f76b446)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (106862). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
CNA 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: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 106862
Nessus Name: openSUSE Security Update : mupdf (openSUSE-2018-167)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 64305
OpenVAS Name: Fedora Update for mupdf FEDORA-2018-da6f76b446
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

12/19/2017 🔍
02/05/2018 +48 days 🔍
02/09/2018 +4 days 🔍
02/09/2018 +0 days 🔍
02/10/2018 +1 days 🔍
02/16/2018 +6 days 🔍
02/16/2018 +0 days 🔍
09/11/2024 +2399 days 🔍

Sourcesinfo

Vendor: artifex.com

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

CVE: CVE-2018-1000051 (🔍)
GCVE (CVE): GCVE-0-2018-1000051
GCVE (VulDB): GCVE-100-113091

OVAL: 🔍

Entryinfo

Created: 02/10/2018 09:24
Updated: 09/11/2024 20:33
Changes: 02/10/2018 09:24 (74), 01/03/2020 15:49 (4), 09/11/2024 20:33 (27)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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