Array index error in LightDM (aka Light Display Manager) 1.14.3, 1.16.x before 1.16.6 when the XDMCP server is enabled allows remote attackers to cause a denial of service (process crash) via an XDMCP request packet with no address
Published Sep 6, 2017
5.9
MEDIUMCVSS 3.0
EPSS 1.75%
Description
Array index error in LightDM (aka Light Display Manager) 1.14.3, 1.16.x before 1.16.6 when the XDMCP server is enabled allows remote attackers to cause a denial of service (process crash) via an XDMCP request packet with no address.
Affected products
No data.
- 1.14.3
- 1.16
- 1.16.1
- 1.16.2
- 1.16.3
- 1.16.4
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:M/Au:N/C:N/I:N/A:P
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 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.75% (0.01748) | 76.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.75% (0.01748) | 74.81th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.59% (0.00588) | 67.27th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.40% (0.00396) | 74.29th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.40% (0.00396) | 72.77th | v3 (v2023.03.01) |
| Mar 9, 2023 | 0.40% (0.00396) | 69.29th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.38% (0.00375) | 68.47th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (3)
- http://www.openwall.com/lists/oss-security/2015/11/22/1 mailing-listx_refsource_MLISTMailing ListVDB Entry
- https://bugs.launchpad.net/lightdm/+bug/1516831 x_refsource_CONFIRMIssue TrackingThird Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1284574 x_refsource_CONFIRMIssue TrackingThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2015/11/22/1 | mailing-listx_refsource_MLISTMailing ListVDB Entry | |
| https://bugs.launchpad.net/lightdm/+bug/1516831 | x_refsource_CONFIRMIssue TrackingThird Party AdvisoryVDB Entry | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1284574 | x_refsource_CONFIRMIssue TrackingThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.