CVE-2018-16509
Published: September 5, 2018Last modified: November 9, 2023
Description
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| 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 |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | ghostscript | Not affected (10.01.2-r0) |
| Stream | ghostscript | Not affected (10.01.2-r0) |
References
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=5516c614dc33662a2afdc377159f70218e67bde5
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=78911a01b67d590b4a91afac2e8417360b934156
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=79cccf641486a6595c43f1de1cd7ade696020a31
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=520bb0ea7519aa3e79db78aaf0589dae02103764
- http://seclists.org/oss-sec/2018/q3/142
- http://www.securityfocus.com/bid/105122
- https://access.redhat.com/errata/RHSA-2018:2918
- https://access.redhat.com/errata/RHSA-2018:3760
- https://bugs.ghostscript.com/show_bug.cgi?id=699654
- https://lists.debian.org/debian-lts-announce/2018/09/msg00015.html
- https://security.gentoo.org/glsa/201811-12
- https://usn.ubuntu.com/3768-1/
- https://www.artifex.com/news/ghostscript-security-resolved/
- https://www.debian.org/security/2018/dsa-4294
- https://www.exploit-db.com/exploits/45369/