CVE-2018-16802

Publication date 10 September 2018

Last updated 24 July 2024


Ubuntu priority

Cvss 3 Severity Score

7.8 · High

Score breakdown

An issue was discovered in Artifex Ghostscript before 9.25. Incorrect "restoration of privilege" checking when running out of stack during exception handling could be used by attackers able to supply crafted PostScript to execute code using the "pipe" instruction. This is due to an incomplete fix for CVE-2018-16509.

Status

Package Ubuntu Release Status
ghostscript 18.04 LTS bionic
Fixed 9.22~dfsg+1-0ubuntu1.2
16.04 LTS xenial
Fixed 9.18~dfsg~0-0ubuntu2.9
14.04 LTS trusty
Fixed 9.10~dfsg-0ubuntu10.13

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-3768-1
    • Ghostscript vulnerabilities
    • 19 September 2018

Other references