Improper input validation in Linux Kernel
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 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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.securityfocus.com/bid/106748 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/drivers/gpu/drm/i91… (Release Notes, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-02/msg00042.html (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2019/01/23/6 (mailing-list, Exploit, Patch, Mailing List, Third Party Advisory)
- access.redhat.com/security/cve/cve-2018-20669 (Third Party Advisory)
- security.netapp.com/advisory/ntap-20190404-0002/ (Third Party Advisory)
- support.f5.com/csp/article/K32059550 (Third Party Advisory)
- usn.ubuntu.com/4485-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-20669?
- CVE-2018-20669 is a high-severity vulnerability in Linux Kernel, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2019-03-21.
- How severe is CVE-2018-20669?
- High severity. CVSS v3 base score is 7.8 out of 10.