CVE-2018-20669

moderate-risk
Published 2019-03-21

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.

Do I need to act?

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0.08% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (8)

Affected Vendors

Linux Canonical Netapp

References (16)

Release Notes http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/drivers/gpu/d...
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/
Third Party Advisory https://support.f5.com/csp/article/K32059550
Third Party Advisory https://usn.ubuntu.com/4485-1/
Release Notes http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/drivers/gpu/d...
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/
Third Party Advisory https://support.f5.com/csp/article/K32059550
Third Party Advisory https://usn.ubuntu.com/4485-1/
38
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 0/34 · Minimal
Exposure 14/34 · Moderate