Artifex Ghostscript 9.21 PostScript Document mark_curve integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Artifex Ghostscript 9.21 and classified as problematic. This issue affects the function mark_curve of the component PostScript Document Handler. Executing a manipulation can lead to integer overflow. This vulnerability appears as CVE-2017-7948. The attack requires local access. There is no available exploit. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Artifex Ghostscript 9.21 (Document Processing Software). It has been declared as problematic. This vulnerability affects the function mark_curve of the component PostScript Document Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect availability. CVE summarizes:

Integer overflow in the mark_curve function in Artifex Ghostscript 9.21 allows remote attackers to cause a denial of service (out-of-bounds write and application crash) or possibly have unspecified other impact via a crafted PostScript document.

The bug was discovered 03/29/2017. The weakness was presented 04/19/2017 as confirmed git commit (GIT Repository). The advisory is available at git.ghostscript.com. This vulnerability was named CVE-2017-7948 since 04/19/2017. 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 was handled as a non-public zero-day exploit for at least 21 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 105974 (Fedora 27 : ghostscript / poppler-data (2017-c9b0c406b3)), 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.

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 8 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (105974). See VDB-101098 and VDB-104534 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
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: Integer overflow
CWE: CWE-190 / CWE-189
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: 105974
Nessus Name: Fedora 27 : ghostscript / poppler-data (2017-c9b0c406b3)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703397
OpenVAS Name: Fedora Update for ghostscript FEDORA-2017-c9b0c406b3
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: 8210a2864372723b49c526e2b102fdc00c9c4699

Timelineinfo

03/29/2017 🔍
04/19/2017 +21 days 🔍
04/19/2017 +0 days 🔍
04/19/2017 +0 days 🔍
04/19/2017 +0 days 🔍
11/15/2017 +210 days 🔍
01/15/2018 +61 days 🔍
12/01/2022 +1781 days 🔍

Sourcesinfo

Vendor: artifex.com

Advisory: FEDORA-2017-c9b0c406b3
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7948 (🔍)
GCVE (CVE): GCVE-0-2017-7948
GCVE (VulDB): GCVE-100-100258
OSVDB: - CVE-2017-7948 - Artifex - Ghostscript - Integer Overflow Issue

See also: 🔍

Entryinfo

Created: 04/19/2017 22:12
Updated: 12/01/2022 13:30
Changes: 04/19/2017 22:12 (75), 09/17/2020 18:19 (4), 12/01/2022 13:24 (4), 12/01/2022 13:30 (1)
Complete: 🔍
Cache ID: 216::103

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