CVE-2018-16509
Publication date 5 September 2018
Last updated 24 July 2024
Ubuntu priority
An issue was discovered in Artifex Ghostscript before 9.24. Incorrect "restoration of privilege" checking during handling of /invalidaccess exceptions could be used by attackers able to supply crafted PostScript to execute code using the "pipe" instruction.
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
|
Patch details
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