CVE Details

Release Date:2018-09-06


The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation have been discovered and fixed over the years. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size.

See more information about CVE-2018-5391 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 7.5 Base Metrics: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector: Network Attack Complexity: Low
Privileges Required: None User Interaction: None
Scope: Unchanged Confidentiality Impact: None
Integrity Impact: None Availability Impact: High

Errata information

PlatformErrataRelease Date
Oracle Linux version 6 (kernel)ELSA-2018-28462018-10-09
Oracle Linux version 6 (kernel-uek)ELSA-2018-41962018-08-14
Oracle Linux version 7 (kernel)ELSA-2018-30832018-11-05
Oracle Linux version 7 (kernel-uek)ELSA-2018-41952018-08-14
Oracle Linux version 7 (kernel-uek)ELSA-2018-41962018-08-14
Oracle VM version 3.4 (kernel-uek)OVMSA-2018-02472018-08-14

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team