Artifex Ghostscript 9.20 base/gsdevmem.c gs_makewordimagedevice null pointer dereference
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.2 | $0-$5k | 0.00 |
A vulnerability classified as problematic has been found in Artifex Ghostscript 9.20 (Document Processing Software). Affected is the function gs_makewordimagedevice
of the file base/gsdevmem.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:
The gs_makewordimagedevice function in base/gsdevmem.c 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 that is mishandled in the PDF Transparency module.
The bug was discovered 12/21/2016. The weakness was shared 04/03/2017 as confirmed git commit (GIT Repository). The advisory is available at ghostscript.com. This vulnerability is traded as CVE-2016-10220 since 02/09/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.
The vulnerability was handled as a non-public zero-day exploit for at least 103 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 99544 (Debian DLA-905-1 : ghostscript 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 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 ghostscript.com. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (99544). The entries 99231, 99232, 99233 and 99248 are related to this item.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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CVSSv3
VulDB Meta Base Score: 4.4VulDB 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: 🔍
CVSSv2
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VulDB Base Score: 🔍
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Exploiting
Class: Null pointer dereferenceCWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 99544
Nessus Name: Debian DLA-905-1 : ghostscript security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 703838
OpenVAS Name: Debian Security Advisory DSA 3838-1 (ghostscript - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: ghostscript.com
Timeline
12/21/2016 🔍02/09/2017 🔍
04/03/2017 🔍
04/03/2017 🔍
04/03/2017 🔍
04/03/2017 🔍
04/20/2017 🔍
04/21/2017 🔍
08/25/2020 🔍
Sources
Vendor: artifex.comAdvisory: ghostscript.com
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2016-10220 (🔍)
OVAL: 🔍
SecurityFocus: 97410 - Ghostscript 'base/gxht_thresh.c' Heap Buffer Overflow Vulnerability
OSVDB: - CVE-2016-10220 - Ghostscript - Denial of Service Issue
See also: 🔍
Entry
Created: 04/03/2017 16:54Updated: 08/25/2020 11:09
Changes: 04/03/2017 16:54 (80), 08/25/2020 11:09 (6)
Complete: 🔍
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