Artifex Ghostscript up to 9.23 Interpreter memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.4 | $0-$5k | 0.00 |
A vulnerability was found in Artifex Ghostscript up to 9.23 (Document Processing Software). It has been rated as critical. Affected by this issue is an unknown code of the component Interpreter. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:
An issue was discovered in Artifex Ghostscript before 9.24. Incorrect exec stack handling in the "CS" and "SC" PDF primitives could be used by remote attackers able to supply crafted PDFs to crash the interpreter or possibly have unspecified other impact.
The bug was discovered 08/24/2018. The weakness was released 09/05/2018 by Tavis Ormandy (Website). The advisory is shared for download at git.ghostscript.com. This vulnerability is handled as CVE-2018-16510 since 09/04/2018. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.
The vulnerability was handled as a non-public zero-day exploit for at least 12 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 117595 (Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : ghostscript vulnerabilities (USN-3768-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171620 (SUSE Enterprise Linux Security Update for ghostscript (SUSE-SU-2018:2975-1)).
Upgrading to version 9.24 eliminates this vulnerability. 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 (117595). Entries connected to this vulnerability are available at 123342, 123627, 123634 and 123635.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB 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: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 117595
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : ghostscript vulnerabilities (USN-3768-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Ghostscript 9.24
Patch: ea735ba37dc0fd5f5622d031830b9a559dec1cc9
Timeline
08/24/2018 🔍09/04/2018 🔍
09/05/2018 🔍
09/05/2018 🔍
09/05/2018 🔍
09/06/2018 🔍
09/19/2018 🔍
09/19/2018 🔍
05/07/2023 🔍
Sources
Vendor: artifex.comAdvisory: USN-3768-1
Researcher: Tavis Ormandy
Status: Confirmed
CVE: CVE-2018-16510 (🔍)
SecurityFocus: 105337 - Ghostscript 'psi/interp.c' Remote Memory Corruption Vulnerability
See also: 🔍
Entry
Created: 09/05/2018 14:36Updated: 05/07/2023 09:07
Changes: 09/05/2018 14:36 (77), 03/20/2020 17:01 (5), 05/07/2023 09:07 (6)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.