CVE-2018-20669

Aliases:UBUNTU-CVE-2018-20669DEBIAN-CVE-2018-20669
Advisory lineage Upstream: 0 Downstream: 15
Modified
Published: 18 Mar 2019, 16:33
Last modified:05 Aug 2024, 12:05

Vulnerability Summary

Overall Risk (default)
medium
41/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.58% LOW
1% probability +0.49%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

18 Mar 2019, 16:33
Published
Vulnerability first disclosed
05 Aug 2024, 12:05
Last Modified
Vulnerability information updated

Description

An issue where a provided address with access_ok() is not checked was discovered in i915_gem_execbuffer2_ioctl in drivers/gpu/drm/i915/i915_gem_execbuffer.c in the Linux kernel through 4.19.13. A local attacker can craft a malicious IOCTL function call to overwrite arbitrary kernel memory, resulting in a Denial of Service or privilege escalation.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.58%• Percentile: 46%

Techniques & Countermeasures

  • CWE-20•Improper Input Validation

    The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04 | 18.04

  • debian•linux

    < 5.2.6-1 | < 5.2.6-1 | < 5.2.6-1 | < 5.2.6-1

  • ubuntu•linux

    < 4.15.0-115.116

  • ubuntu•linux-aws

    < 4.15.0-1080.84

  • ubuntu•linux-aws-fips

    < 4.15.0-2025.25 | all

  • ubuntu•linux-aws-hwe

    < 4.15.0-1080.84~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1093.103~14.04.1 | < 4.15.0-1093.103~16.04.1 | < 5.0.0-1014.14~18.04.1

  • ubuntu•linux-azure-4.15

    < 4.15.0-1093.103

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2007.8 | all

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-fips

    < 4.15.0-1039.44

  • ubuntu•linux-gcp

    < 4.15.0-1081.92~16.04.1 | < 5.0.0-1020.20~18.04.1

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1081.92

  • ubuntu•linux-gcp-fips

    all

  • ubuntu•linux-gke-4.15

    < 4.15.0-1067.70

  • ubuntu•linux-hwe

    < 4.15.0-115.116~16.04.1 | < 5.0.0-23.24~18.04.1

  • ubuntu•linux-hwe-edge

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.15.0-1072.73

  • ubuntu•linux-oem

    < 4.15.0-1094.104

  • ubuntu•linux-oracle

    < 4.15.0-1051.55~16.04.1 | < 4.15.0-1051.55

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.15.0-1068.72

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all

  • ubuntu•linux-snapdragon

    < 4.15.0-1084.92

  • linux•linux_kernel

    ≥ 4.13, < 4.14.185 | ≥ 4.15, < 4.19.129 | ≥ 4.20, < 5.0

  • netapp•cn1610_firmware

    na

  • netapp•hci_management_node

    na

  • netapp•snapprotect

    na

  • netapp•solidfire

    na

References (14)