CVE-2018-20669

HighCVSS 7.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/drivers/gpu/drm/i915/i915_gem_execbuffer.cRelease Notes, Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00042.htmlMailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/01/23/6Exploit, Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/106748Broken Link, Third Party Advisory, VDB Entry
https://access.redhat.com/security/cve/cve-2018-20669Third Party Advisory
https://security.netapp.com/advisory/ntap-20190404-0002/Third Party Advisory
https://support.f5.com/csp/article/K32059550Third Party Advisory
https://usn.ubuntu.com/4485-1/Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/drivers/gpu/drm/i915/i915_gem_execbuffer.cRelease Notes, Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00042.htmlMailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/01/23/6Exploit, Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/106748Broken Link, Third Party Advisory, VDB Entry
https://access.redhat.com/security/cve/cve-2018-20669Third Party Advisory
https://security.netapp.com/advisory/ntap-20190404-0002/Third Party Advisory
https://support.f5.com/csp/article/K32059550Third Party Advisory
https://usn.ubuntu.com/4485-1/Third Party Advisory

Timeline

Published: Mar 21, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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