CVE-2017-9835

Publication date 26 July 2017

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

Description

The gs_alloc_ref_array function in psi/ialloc.c in Artifex Ghostscript 9.21 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted PostScript document. This is related to a lack of an integer overflow check in base/gsalloc.c.

Status

Package Ubuntu Release Status
ghostscript 17.04 zesty
Fixed 9.19~dfsg+1-0ubuntu7.6
16.04 LTS xenial
Fixed 9.18~dfsg~0-0ubuntu2.7
14.04 LTS trusty
Fixed 9.10~dfsg-0ubuntu10.10

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
ghostscript

Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3403-1
    • Ghostscript vulnerabilities
    • 28 August 2017

Other references