Artifex MuPDF 1.9 JBIG2 Parser Negative Number memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Artifex MuPDF 1.9 and classified as critical. Impacted is an unknown function of the component JBIG2 Parser. This manipulation as part of Negative Number causes memory corruption. This vulnerability is handled as CVE-2016-8729. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Artifex MuPDF 1.9 (Document Reader Software). Affected by this vulnerability is an unknown part of the component JBIG2 Parser. The manipulation as part of a Negative Number leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An exploitable memory corruption vulnerability exists in the JBIG2 parser of Artifex MuPDF 1.9. A specially crafted PDF can cause a negative number to be passed to a memset resulting in memory corruption and potential code execution. An attacker can specially craft a PDF and send to the victim to trigger this vulnerability.

The bug was discovered 05/15/2017. The weakness was released 04/24/2018 (Website). The advisory is shared at talosintelligence.com. This vulnerability is known as CVE-2016-8729 since 10/17/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 12 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 100488 (Fedora 25 : mupdf (2017-5135c91b36)), 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 276661 (Fedora Security Update for mupdfa (FEDORA-2017-5135c91b36)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (100488). Entry connected to this vulnerability is available at VDB-117000. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Talos): 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: 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: 100488
Nessus Name: Fedora 25 : mupdf (2017-5135c91b36)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for mupdf FEDORA-2017-5135c91b36
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/17/2016 🔍
05/15/2017 +210 days 🔍
05/27/2017 +12 days 🔍
05/30/2017 +3 days 🔍
04/24/2018 +328 days 🔍
04/24/2018 +0 days 🔍
04/25/2018 +1 days 🔍
03/07/2023 +1777 days 🔍

Sourcesinfo

Vendor: artifex.com

Advisory: FEDORA-2017-5135c91b36
Status: Not defined

CVE: CVE-2016-8729 (🔍)
GCVE (CVE): GCVE-0-2016-8729
GCVE (VulDB): GCVE-100-117001
See also: 🔍

Entryinfo

Created: 04/25/2018 08:52
Updated: 03/07/2023 07:39
Changes: 04/25/2018 08:52 (72), 01/30/2020 20:02 (3), 03/07/2023 07:33 (14), 03/07/2023 07:39 (1)
Complete: 🔍
Cache ID: 216:688:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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