Executive Summary
| Summary | |
|---|---|
| Title | Linux kernel vulnerabilities |
| Informations | |||
|---|---|---|---|
| Name | USN-4076-1 | First vendor Publication | 2019-07-25 |
| Vendor | Ubuntu | Last vendor Modification | 2019-07-25 |
| Severity (Vendor) | N/A | Revision | N/A |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:M/Au:N/C:C/I:C/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 9.3 | Attack Range | Network |
| Cvss Impact Score | 10 | Attack Complexity | Medium |
| Cvss Expoit Score | 8.6 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-kvm: Linux kernel for cloud environments - linux-raspi2: Linux kernel for Raspberry Pi 2 Details: It was discovered that a race condition existed in the Serial Attached SCSI (SAS) implementation in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2018-20836) It was discovered that the ext4 file system implementation in the Linux kernel did not properly zero out memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-11833) It was discovered that the Bluetooth Human Interface Device Protocol (HIDP) implementation in the Linux kernel did not properly verify strings were NULL terminated in certain situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-11884) It was discovered that the Linux kernel on ARM processors allowed a tracing process to modify a syscall after a seccomp decision had been made on that syscall. A local attacker could possibly use this to bypass seccomp restrictions. (CVE-2019-2054) Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel did not properly prevent remote firmware events from being processed for USB Wifi devices. A physically proximate attacker could use this to send firmware events to the device. (CVE-2019-9503) It was discovered that an integer overflow existed in the Freescale (PowerPC) hypervisor manager in the Linux kernel. A local attacker with write access to /dev/fsl-hv could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10142) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 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-4076-1 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 33 % | CWE-416 | Use After Free |
| 33 % | CWE-362 | Race Condition |
| 33 % | CWE-190 | Integer Overflow or Wraparound (CWE/SANS Top 25) |
CPE : Common Platform Enumeration
Alert History
| Date | Informations |
|---|---|
| 2019-08-02 12:13:52 |
|
| 2019-07-26 00:18:52 |
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