ghostscript: Saved execution stacks can leak operator arrays
Published Oct 15, 2018
6.3
MEDIUMCVSS 3.1
EPSS 2.73%
Description
Artifex Ghostscript allows attackers to bypass a sandbox protection mechanism by leveraging exposure of system operators in the saved execution stack in an error object.
Affected products
No data.
Configuration 1
- ≤ 9.25
Configuration 2
- 8.0
- 9.0
Configuration 3
- 14.04
- 16.04
- 18.04
- 18.10
Configuration 4
- 7.0
- 7.0
- 7.6
- 7.6
- 7.6
- 7.0
No data.
Red Hat Enterprise Linux 7
ghostscript-0:9.07-31.el7_6.6
Fixed · RHSA-2018:3834
Red Hat Enterprise Linux 5
ghostscript
Will not fix
Red Hat Enterprise Linux 6
ghostscript
Will not fix
Red Hat Enterprise Linux 8
ghostscript
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | ghostscript-0:9.07-31.el7_6.6 | Fixed | RHSA-2018:3834 |
| Red Hat Enterprise Linux 5 | ghostscript | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | ghostscript | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | ghostscript | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This has been rated as having a security impact of Important, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Red Hat mitigation
Please refer to the "Mitigation" section of CVE-2018-16509 : https://access.redhat.com/security/cve/cve-2018-16509
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.73% (0.02730) | 85.58th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.73% (0.02730) | 84.11th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.20% (0.00196) | 39.48th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.22% (0.00225) | 61.65th | v3 (v2023.03.01) |
| Jun 3, 2024 | 0.22% (0.00225) | 60.72th | v3 (v2023.03.01) |
| Mar 7, 2024 | 0.29% (0.00294) | 68.57th | v3 (v2023.03.01) |
| Oct 9, 2023 | 0.21% (0.00207) | 58.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00163) | 51.11th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.38% (0.02378) | 81.49th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.38% (0.02378) | 58.37th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.59% (0.03590) | 68.40th | v5 (v2026.06.15) |
| Apr 14, 2021 | 3.59% (0.03590) | 0.00th | v1 |
References (13)
- http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=34cc326eb2c5695833361887fe0b32e8d987741c x_refsource_CONFIRM
- http://packetstormsecurity.com/files/149758/Ghostscript-Exposed-System-Operators.html x_refsource_MISCThird Party AdvisoryVDB Entry
- http://www.openwall.com/lists/oss-security/2018/10/10/12 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3834 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-18073 Vendor Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1690 x_refsource_MISCIssue TrackingPatchThird Party Advisory
- https://bugs.ghostscript.com/show_bug.cgi?id=699927 x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1642584 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2018/10/msg00013.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-18073
- https://usn.ubuntu.com/3803-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-18073
- https://www.debian.org/security/2018/dsa-4336 vendor-advisoryx_refsource_DEBIANThird Party Advisory
Change history (0)
No recorded changes yet.