Artifex Ghostscript GhostXPS 9.22 base/gxttfb.c gx_ttfReader__Read memory corruption

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

Summaryinfo

A vulnerability has been found in Artifex Ghostscript GhostXPS 9.22 and classified as critical. This affects the function gx_ttfReader__Read of the file base/gxttfb.c. Performing a manipulation results in memory corruption. This vulnerability is identified as CVE-2017-9727. The attack is only possible with local access. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Artifex Ghostscript GhostXPS 9.22 (Document Processing Software). It has been classified as critical. This affects the function gx_ttfReader__Read of the file base/gxttfb.c. The manipulation with an unknown input 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. The summary by CVE is:

The gx_ttfReader__Read function in base/gxttfb.c in Artifex Ghostscript GhostXPS 9.22 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact via a crafted document.

The bug was discovered 07/25/2017. The weakness was released 07/26/2017 (Website). The advisory is shared at bugs.ghostscript.com. This vulnerability is uniquely identified as CVE-2017-9727 since 06/16/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 102096 (Debian DLA-1048-1 : 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 196898 (Ubuntu Security Notification for Ghostscript Vulnerabilities (USN-3403-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 6 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (102096) and SecurityFocus (BID 99999†). Entries connected to this vulnerability are available at VDB-104535, VDB-104536, VDB-104540 and VDB-104542. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: 102096
Nessus Name: Debian DLA-1048-1 : ghostscript security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53754
OpenVAS Name: Debian Security Advisory DSA 3986-1 (ghostscript - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: 937ccd17ac65935633b2ebc06cb7089b91e17e6b

Timelineinfo

06/14/2017 🔍
06/16/2017 +2 days 🔍
07/25/2017 +39 days 🔍
07/26/2017 +1 days 🔍
07/26/2017 +0 days 🔍
07/27/2017 +1 days 🔍
08/01/2017 +5 days 🔍
08/02/2017 +1 days 🔍
12/14/2022 +1960 days 🔍

Sourcesinfo

Vendor: artifex.com

Advisory: bugs.ghostscript.com
Researcher: Kim Gwan Yeong
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-9727 (🔍)
GCVE (CVE): GCVE-0-2017-9727
GCVE (VulDB): GCVE-100-104541

OVAL: 🔍

SecurityFocus: 99999 - Ghostscript GhostXPS CVE-2017-9727 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 07/27/2017 08:26
Updated: 12/14/2022 09:25
Changes: 07/27/2017 08:26 (78), 11/01/2019 15:36 (6), 01/06/2021 14:03 (2), 12/14/2022 09:25 (4)
Complete: 🔍
Cache ID: 216::103

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