HIGH
kernel: Integer overflow in drivers/gpu/drm/udl/udl_fb.c:udl_fb_mmap() can allow attackers to execute code in kernel space
Published Apr 23, 2018
7.8
HIGHCVSS 3.1
EPSS 0.49%
Description
The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c at the Linux kernel version 3.4 and up to and including 4.15 has an integer-overflow vulnerability allowing local users with access to the udldrmfb driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution in kernel space.
Affected products
-
- Version kernel version 3.4 and up to and including 4.15StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Check Point Software Technologies Ltd. | Linux Kernel | n/a |
|
Configuration 1
OR
- ≥ 3.4 · < 3.16.57
- ≥ 3.17 · < 3.18.103
- ≥ 3.19 · < 4.1.52
- ≥ 4.2 · < 4.4.125
- ≥ 4.5 · < 4.9.91
- ≥ 4.10 · < 4.14.31
- ≥ 4.15 · < 4.15.14
Configuration 2
OR
- 12.04
- 14.04
- 16.04
- 17.10
Configuration 3
OR
- 7.0
- 8.0
- 9.0
Configuration 4
OR
- 7.0
- 7.0
- 7.0
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-957.el7
Fixed · RHSA-2018:3083
Red Hat Enterprise Linux 7
kernel-alt-0:4.14.0-115.el7a
Fixed · RHSA-2018:2948
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-957.rt56.910.el7
Fixed · RHSA-2018:3096
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-957.el7 | Fixed | RHSA-2018:3083 |
| Red Hat Enterprise Linux 7 | kernel-alt-0:4.14.0-115.el7a | Fixed | RHSA-2018:2948 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-957.rt56.910.el7 | Fixed | RHSA-2018:3096 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
7.8 HIGH NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.0 HIGH Red Hat
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.2 HIGH NVD
AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.49% 0.00494
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00494
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.49% (0.00494) | 40.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.50% (0.00502) | 38.76th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.05% (0.00046) | 11.43th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.92% (0.01916) | 77.44th | v2 (v2022.01.01) |
| Jan 18, 2023 | 1.92% (0.01916) | 76.84th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.86% (0.01864) | 75.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.86% (0.01864) | 54.47th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.08% (0.03075) | 65.16th | v1 |
| Jan 6, 2022 | 3.08% (0.03075) | 64.83th | v1 |
| Sep 1, 2021 | 3.08% (0.03075) | 81.18th | v1 |
| Apr 14, 2021 | 3.08% (0.03075) | 0.00th | v1 |
Weaknesses (1)
References (19)
- https://access.redhat.com/errata/RHSA-2018:2948 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3083 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3096 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-8781 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1571062 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-8781
- https://patchwork.freedesktop.org/patch/211845/ x_refsource_MISCIssue TrackingPatchThird Party Advisory
- https://research.checkpoint.com/mmap-vulnerabilities-linux-kernel/ x_refsource_MISCThird Party Advisory
- https://usn.ubuntu.com/3654-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3654-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3656-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3674-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3674-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3677-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3677-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-8781
- https://www.debian.org/security/2018/dsa-4187 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.debian.org/security/2018/dsa-4188 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2018:2948 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2018:3083 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2018:3096 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2018-8781 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1571062 | Issue Tracking | |
| https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-8781 | ||
| https://patchwork.freedesktop.org/patch/211845/ | x_refsource_MISCIssue TrackingPatchThird Party Advisory | |
| https://research.checkpoint.com/mmap-vulnerabilities-linux-kernel/ | x_refsource_MISCThird Party Advisory | |
| https://usn.ubuntu.com/3654-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3654-2/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3656-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3674-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3674-2/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3677-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3677-2/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-8781 | ||
| https://www.debian.org/security/2018/dsa-4187 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://www.debian.org/security/2018/dsa-4188 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner checkpoint
Published Apr 23, 2018
Updated Sep 16, 2024
Reserved Mar 19, 2018
Link CVE-2018-8781
CISA Vulnrichment
Updated n/a