CVE-2018-14656
HIGHCVSS 7/10EPSS 0.53%
Last modified
CVE-2018-14656 is a high-severity vulnerability rated 7/10 on the CVSS scale. 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.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | <= 4.18 | — |
| Linux | Linux Kernel | 4.19 | Rc1 |
References
- http://www.securitytracker.com/id/1041804Third Party Advisory, VDB Entry
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1650Issue Tracking, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14656Issue Tracking, Patch, Third Party Advisory
- https://seclists.org/oss-sec/2018/q4/9Mailing List, Patch, Third Party Advisory
- http://www.securitytracker.com/id/1041804Third Party Advisory, VDB Entry
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1650Issue Tracking, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14656Issue Tracking, Patch, Third Party Advisory
- https://seclists.org/oss-sec/2018/q4/9Mailing List, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2018-14656?
CVE-2018-14656 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.
How do I fix CVE-2018-14656?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Related CVEs from 2018
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- CVE-2018-14653The Gluster file system through versions 4.1.4 and 3.12 is v…8.8
- CVE-2018-14654The Gluster file system through version 4.1.4 is vulnerable …6.5
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- CVE-2018-1466IBM SAN Volume Controller, IBM Storwize, IBM Spectrum Virtua…5.3
- CVE-2018-14660A flaw was found in glusterfs server through versions 4.1.4 …6.5
- CVE-2018-14661It was found that usage of snprintf function in feature/lock…6.5
Are you affected by CVE-2018-14656?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST