National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2018-8781 Detail

Current 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.

Source:  MITRE
Description Last Modified:  04/23/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 1.8

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.2 HIGH
Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2018:2948
https://access.redhat.com/errata/RHSA-2018:3083
https://access.redhat.com/errata/RHSA-2018:3096
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html Third Party Advisory
https://patchwork.freedesktop.org/patch/211845/ Issue Tracking Patch Third Party Advisory
https://research.checkpoint.com/mmap-vulnerabilities-linux-kernel/
https://usn.ubuntu.com/3654-1/ Third Party Advisory
https://usn.ubuntu.com/3654-2/ Third Party Advisory
https://usn.ubuntu.com/3656-1/ Third Party Advisory
https://usn.ubuntu.com/3674-1/
https://usn.ubuntu.com/3674-2/
https://usn.ubuntu.com/3677-1/
https://usn.ubuntu.com/3677-2/
https://www.debian.org/security/2018/dsa-4187 Third Party Advisory
https://www.debian.org/security/2018/dsa-4188 Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Integer Overflow or Wraparound (CWE-190)

Change History

9 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-8781
NVD Published Date:
04/23/2018
NVD Last Modified:
10/31/2018