CVE-2018-20669 — Improper Input Validation in Kernel
Severity
7.8HIGHNVD
EPSS
0.1%
top 76.62%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 21
Latest updateMay 13
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages5 packages
Also affects: Ubuntu Linux 14.04, 16.04, 18.04
Patches
🔴Vulnerability Details
4GHSA▶
GHSA-3jgv-8wx7-rw7p: 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_execbu↗2022-05-13
OSV▶
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities↗2020-09-03
OSV▶
CVE-2018-20669: 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_execbu↗2019-03-21