VDB-116568 · CVE-2018-10194 · BID 105178

Artifex Ghostscript up to 9.22 gdevpdts.c set_text_distance PDF Document memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

A vulnerability classified as critical has been found in Artifex Ghostscript up to 9.22 (Document Processing Software). Affected is the function set_text_distance of the file devices/vector/gdevpdts.c. The manipulation as part of a PDF Document leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The set_text_distance function in devices/vector/gdevpdts.c in the pdfwrite component in Artifex Ghostscript through 9.22 does not prevent overflows in text-positioning calculation, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted PDF document.

The bug was discovered 04/19/2018. The weakness was presented 04/18/2018 (Website). The advisory is shared for download at git.ghostscript.com. This vulnerability is traded as CVE-2018-10194 since 04/18/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 109416 (Fedora 26 : ghostscript (2018-226dac231f)), 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 256499 (CentOS Security Update for ghostscript (CESA-2018:2918)).

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

The vulnerability is also documented in the vulnerability database at Tenable (109416).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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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Nessus ID: 109416
Nessus Name: Fedora 26 : ghostscript (2018-226dac231f)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53849
OpenVAS Name: Fedora Update for ghostscript FEDORA-2018-226dac231f
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Patch: 39b1e54b2968620723bf32e96764c88797714879

Timelineinfo

04/18/2018 🔍
04/18/2018 +0 days 🔍
04/18/2018 +0 days 🔍
04/19/2018 +1 days 🔍
04/19/2018 +0 days 🔍
04/29/2018 +10 days 🔍
04/30/2018 +1 days 🔍
08/28/2018 +120 days 🔍
02/28/2023 +1645 days 🔍

Sourcesinfo

Vendor: artifex.com

Advisory: FEDORA-2018-226dac231f
Status: Confirmed

CVE: CVE-2018-10194 (🔍)
SecurityTracker: 1040729
SecurityFocus: 105178 - Ghostscript 'shading_param' Remote Code Execution Vulnerability

Entryinfo

Created: 04/19/2018 08:45 AM
Updated: 02/28/2023 01:34 PM
Changes: 04/19/2018 08:45 AM (77), 01/27/2020 05:01 PM (5), 02/28/2023 01:28 PM (7), 02/28/2023 01:34 PM (1)
Complete: 🔍
Cache ID: 44:FB2:40

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