Artifex Ghostscript up to 9.24 Error input validation

Summaryinfo

A vulnerability classified as critical has been found in Artifex Ghostscript up to 9.24. The impacted element is an unknown function of the component Error Handler. Performing a manipulation results in input validation. This vulnerability was named CVE-2018-17183. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Artifex Ghostscript up to 9.24 (Document Processing Software). This affects some unknown processing of the component Error Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Artifex Ghostscript before 9.25 allowed a user-writable error exception table, which could be used by remote attackers able to supply crafted PostScript to potentially overwrite or replace error handlers to inject code.

The weakness was presented 09/19/2018 (Website). It is possible to read the advisory at git.ghostscript.com. This vulnerability is uniquely identified as CVE-2018-17183 since 09/19/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 117867 (Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : ghostscript vulnerabilities (USN-3773-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. 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 9.25 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (117867) and SecurityFocus (BID 106154†). See VDB-123342, VDB-123596, VDB-123635 and VDB-123662 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Document Processing Software

Vendor

• Artifex

Name

• Ghostscript

Version

• 9.0
• 9.1
• 9.2
• 9.3
• 9.4
• 9.5
• 9.6
• 9.7
• 9.8
• 9.9
• 9.10
• 9.11
• 9.12
• 9.13
• 9.14
• 9.15
• 9.16
• 9.17
• 9.18
• 9.19
• 9.20
• 9.21
• 9.22
• 9.23
• 9.24

License

• free

Website

• Vendor: https://artifex.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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