SB2018043037 - Ubuntu update for ghostscript



SB2018043037 - Ubuntu update for ghostscript

Published: April 30, 2018 Updated: October 30, 2026

Security Bulletin ID SB2018043037
CSH Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Heap-based buffer overflow (CVE-ID: CVE-2016-10317)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the fill_threshhold_buffer function in base/gxht_thresh.c due to heap-based buffer overflow. A remote attacker can submit a specially crafted PostScript document, trigger memory corruption and cause the service to crash.

2) Buffer overflow (CVE-ID: CVE-2018-10194)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.

The vulnerability exists in the pprintg1 function due boundary error when handling of postscript file data written to PDF. A remote unauthenticated attacker can trick the victim into opening a specially crafted PDF file, trigger memory corruption and cause the application to crash or execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install update from vendor's website.