Executive Summary
Summary | |
---|---|
Title | Linux kernel vulnerabilities |
Informations | |||
---|---|---|---|
Name | USN-4325-1 | First vendor Publication | 2020-04-07 |
Vendor | Ubuntu | Last vendor Modification | 2020-04-07 |
Severity (Vendor) | N/A | Revision | N/A |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | |||
---|---|---|---|
Overall CVSS Score | 7.1 | ||
Base Score | 7.1 | Environmental Score | 7.1 |
impact SubScore | 5.2 | Temporal Score | 7.1 |
Exploitabality Sub Score | 1.8 | ||
Attack Vector | Local | Attack Complexity | Low |
Privileges Required | Low | User Interaction | None |
Scope | Unchanged | Confidentiality Impact | High |
Integrity Impact | None | Availability Impact | High |
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:L/AC:L/Au:N/C:P/I:N/A:P) | |||
---|---|---|---|
Cvss Base Score | 3.6 | Attack Range | Local |
Cvss Impact Score | 4.9 | Attack Complexity | Low |
Cvss Expoit Score | 3.9 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-gke-5.0: Linux kernel for Google Container Engine (GKE) systems - linux-oem-osp1: Linux kernel for OEM processors - linux-oracle-5.0: Linux kernel for Oracle Cloud systems Details: It was discovered that the IPMI message handler implementation in the Linux kernel did not properly deallocate memory in certain situations. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19046) Al Viro discovered that the vfs layer in the Linux kernel contained a use- after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2020-8428) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: Package Information: |
Original Source
Url : http://www.ubuntu.com/usn/USN-4325-1 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
50 % | CWE-416 | Use After Free |
50 % | CWE-401 | Failure to Release Memory Before Removing Last Reference ('Memory Leak') |
CPE : Common Platform Enumeration
Alert History
Date | Informations |
---|---|
2020-05-23 13:03:46 |
|
2020-04-08 05:18:48 |
|