Artifex Ghostscript PDF Transparency base/gdevp14.c pdf14_pop_transparency_group null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Artifex Ghostscript. Affected by this issue is the function pdf14_pop_transparency_group of the file base/gdevp14.c of the component PDF Transparency Module. Executing a manipulation can lead to null pointer dereference. This vulnerability is tracked as CVE-2016-10218. The attack is restricted to local execution. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Artifex Ghostscript (Document Processing Software) (version unknown). It has been declared as problematic. This vulnerability affects the function pdf14_pop_transparency_group of the file base/gdevp14.c of the component PDF Transparency Module. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. CVE summarizes:

The pdf14_pop_transparency_group function in base/gdevp14.c in the PDF Transparency module in Artifex Software, Inc. Ghostscript 9.20 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted file.

The bug was discovered 12/19/2016. The weakness was disclosed 04/03/2017 as confirmed git commit (GIT Repository). The advisory is shared for download at git.ghostscript.com. This vulnerability was named CVE-2016-10218 since 02/09/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 105 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 100013 (Fedora 25 : ghostscript (2017-c85c0e5637)), 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 277699 (Fedora Security Update for ghostscript (FEDORA-2017-a606d224a5)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.ghostscript.com. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100013) and SecurityFocus (BID 97410†). The entries VDB-99231, VDB-99233, VDB-99234 and VDB-99248 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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: 100013
Nessus Name: Fedora 25 : ghostscript (2017-c85c0e5637)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for ghostscript FEDORA-2017-c85c0e5637
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: d621292fb2c8157d9899dcd83fd04dd250e30fe4

Timelineinfo

12/19/2016 🔍
02/09/2017 +52 days 🔍
04/03/2017 +53 days 🔍
04/03/2017 +0 days 🔍
04/03/2017 +0 days 🔍
04/03/2017 +0 days 🔍
05/06/2017 +33 days 🔍
05/08/2017 +2 days 🔍
11/24/2022 +2026 days 🔍

Sourcesinfo

Vendor: artifex.com

Advisory: FEDORA-2017-c85c0e5637
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-10218 (🔍)
GCVE (CVE): GCVE-0-2016-10218
GCVE (VulDB): GCVE-100-99232
SecurityFocus: 97410 - Ghostscript 'base/gxht_thresh.c' Heap Buffer Overflow Vulnerability
OSVDB: - CVE-2016-10218 - Ghostscript - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 04/03/2017 16:54
Updated: 11/24/2022 17:12
Changes: 04/03/2017 16:54 (79), 08/25/2020 10:54 (6), 11/24/2022 17:05 (4), 11/24/2022 17:12 (1)
Complete: 🔍
Cache ID: 216:A7B:103

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