High severity · published Mar 18, 2019
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_execbuffer.c in the Linux kernel…
7.8
CVSS
0.6%
EPSS
No
On KEV
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:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
4.13 before 4.14.185; 4.15 before 4.19.129; 4.20 before 5.0 · source: NVD
CF
Cn1610 Firmware · Netapp
All versions, or not specified · source: NVD
HM
Hci Management Node · Netapp
All versions, or not specified · source: NVD
SN
Snapprotect · Netapp
All versions, or not specified · source: NVD
SO
Solidfire · Netapp
All versions, or not specified · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 18.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-20669
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-20669
Release Notes
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/drivers/gpu/drm/i915/i915_gem_execbuffer.c
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00042.html
Exploit
http://www.openwall.com/lists/oss-security/2019/01/23/6
Broken Link
http://www.securityfocus.com/bid/106748
Third Party Advisory
https://access.redhat.com/security/cve/cve-2018-20669
Third Party Advisory
https://security.netapp.com/advisory/ntap-20190404-0002/
More from Kernel
9.8
CVE-2025-39682
tls: fix handling of zero-length records on the rx_list
8.8
CVE-2026-53266
netfilter: bridge: make ebt_snat ARP rewrite writable
8.8
CVE-2013-6282
Linux Kernel Improper Input Validation Vulnerability
8.4
CVE-2022-0185
Linux Kernel Heap-Based Buffer Overflow Vulnerability
8.4
CVE-2013-2094
Linux Kernel Privilege Escalation Vulnerability