Improper input validation in Linux Kernel
CVE-2018-14656
A missing address check in the callers of the show_opcodes() in the Linux kernel allows an attacker to dump the kernel memory at an arbitrary kernel address into the dmesg log.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (42.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Linux Kernel — versions 4.19
- [Unknown] Kernel
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.securitytracker.com/id/1041804 (VDB Entry, Third Party Advisory, vdb-entry)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Third Party Advisory)
- lore.kernel.org/lkml/20180828154901.112726-1-jannh@google.com/T/
- seclists.org/oss-sec/2018/q4/9 (Patch, Mailing List, Third Party Advisory)
- bugs.chromium.org/p/project-zero/issues/detail (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2018-14656?
- CVE-2018-14656 is a high-severity vulnerability in Linux Kernel, classified under Improper Input Validation. CVSS score: 7.0/10. Published 2018-10-08.
- How severe is CVE-2018-14656?
- High severity. CVSS v3 base score is 7.0 out of 10.