VDB-107002 · CVE-2017-14686 · Qualys 176185

Artifex MuPDF 1.11 on Windows User Mode fitz/unzip.c Negative Number memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

A vulnerability classified as critical was found in Artifex MuPDF 1.11 on Windows (Document Reader Software). This vulnerability affects an unknown function of the file fitz/unzip.c of the component User Mode. 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. CVE summarizes:

Artifex MuPDF 1.11 allows attackers to execute arbitrary code or cause a denial of service via a crafted .xps file, related to a "User Mode Write AV near NULL starting at wow64!Wow64NotifyDebugger+0x000000000000001d" on Windows. This occurs because read_zip_dir_imp in fitz/unzip.c does not check whether size fields in a ZIP entry are negative numbers.

The bug was discovered 09/22/2017. The weakness was disclosed 09/22/2017 (Website). The advisory is available at git.ghostscript.com. This vulnerability was named CVE-2017-14686 since 09/22/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 104134 (Debian DSA-4006-1 : mupdf - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176185 (Debian Security Update for mupdf (DSA 4006-1)).

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

The vulnerability is also documented in the vulnerability database at Tenable (104134).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
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Nessus ID: 104134
Nessus Name: Debian DSA-4006-1 : mupdf - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53379
OpenVAS Name: Debian Security Advisory DSA 4006-1 (mupdf - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: 0f0fbc07d9be31f5e83ec5328d7311fdfd8328b1

Timelineinfo

09/22/2017 🔍
09/22/2017 +0 days 🔍
09/22/2017 +0 days 🔍
09/22/2017 +0 days 🔍
09/22/2017 +0 days 🔍
10/24/2017 +32 days 🔍
10/25/2017 +1 days 🔍
12/30/2022 +1892 days 🔍

Sourcesinfo

Vendor: artifex.com

Advisory: git.ghostscript.com
Status: Not defined

CVE: CVE-2017-14686 (🔍)
OVAL: 🔍

Entryinfo

Created: 09/22/2017 03:16 PM
Updated: 12/30/2022 07:50 AM
Changes: 09/22/2017 03:16 PM (76), 11/18/2019 07:37 PM (3), 12/30/2022 07:50 AM (4)
Complete: 🔍
Cache ID: 100:45A:40

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