SB2018091403 - Stack-based buffer overflow in ghostscript (Alpine package)

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Main Vulnerability Database SB2018091403

SB2018091403 - Stack-based buffer overflow in ghostscript (Alpine package)

Published: September 14, 2018

Security Bulletin ID SB2018091403
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Stack-based buffer overflow (CVE-ID: CVE-2018-16802)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to incorrect "restoration of privilege" checking when running out of stack during exception handling. A remote unauthenticated attacker can supply specially crafted PostScript, trigger memory corruption and execute code using the "pipe" instruction.

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

Note: the vulnerability exists due to an incomplete fix for CVE-2018-16509.


Remediation

Install update from vendor's website.

References