Executive Summary
| Summary | |
|---|---|
| Title | Linux kernel vulnerabilities |
| Informations | |||
|---|---|---|---|
| Name | USN-3776-1 | First vendor Publication | 2018-10-01 |
| Vendor | Ubuntu | Last vendor Modification | 2018-10-01 |
| 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:P/I:P/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 8.3 | Attack Range | Network |
| Cvss Impact Score | 8.5 | 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 - linux-snapdragon: Linux kernel for Snapdragon processors Details: Jann Horn discovered that the vmacache subsystem did not properly handle sequence number overflows, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2018-17182) It was discovered that the paravirtualization implementation in the Linux kernel did not properly handle some indirect calls, reducing the effectiveness of Spectre v2 mitigations for paravirtual guests. A local attacker could use this to expose sensitive information. (CVE-2018-15594) It was discovered that microprocessors utilizing speculative execution and prediction of return addresses via Return Stack Buffer (RSB) may allow unauthorized memory reads via sidechannel attacks. An attacker could use this to expose sensitive information. (CVE-2018-15572) It was discovered that a NULL pointer dereference could be triggered in the OCFS2 file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-18216) It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10902) It was discovered that a stack-based buffer overflow existed in the iSCSI target implementation of the Linux kernel. A remote attacker could use this to cause a denial of service (system crash). (CVE-2018-14633) It was discovered that the YUREX USB device driver for the Linux kernel did not properly restrict user space reads or writes. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16276) It was discovered that a memory leak existed in the IRDA subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2018-6554) It was discovered that a use-after-free vulnerability existed in the IRDA implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-6555) 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-3776-1 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 43 % | CWE-416 | Use After Free |
| 14 % | CWE-787 | Out-of-bounds Write (CWE/SANS Top 25) |
| 14 % | CWE-772 | Missing Release of Resource after Effective Lifetime |
| 14 % | CWE-476 | NULL Pointer Dereference |
| 14 % | CWE-200 | Information Exposure |
CPE : Common Platform Enumeration
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2019-01-03 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-e820fccd83.nasl - Type : ACT_GATHER_INFO |
| 2019-01-03 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-5453baa4af.nasl - Type : ACT_GATHER_INFO |
| 2019-01-03 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-272cf2f9f4.nasl - Type : ACT_GATHER_INFO |
| 2019-01-03 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-0edb45d9db.nasl - Type : ACT_GATHER_INFO |
| 2018-12-28 | Name : The remote EulerOS host is missing multiple security updates. File : EulerOS_SA-2018-1433.nasl - Type : ACT_GATHER_INFO |
| 2018-12-28 | Name : The remote EulerOS host is missing multiple security updates. File : EulerOS_SA-2018-1432.nasl - Type : ACT_GATHER_INFO |
| 2018-12-14 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2018-3651.nasl - Type : ACT_GATHER_INFO |
| 2018-12-05 | Name : The remote PhotonOS host is missing multiple security updates. File : PhotonOS_PHSA-2018-2_0-0101.nasl - Type : ACT_GATHER_INFO |
| 2018-11-21 | Name : The remote EulerOS Virtualization host is missing a security update. File : EulerOS_SA-2018-1382.nasl - Type : ACT_GATHER_INFO |
| 2018-11-21 | Name : The remote EulerOS Virtualization host is missing a security update. File : EulerOS_SA-2018-1372.nasl - Type : ACT_GATHER_INFO |
| 2018-11-16 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2018-3083.nasl - Type : ACT_GATHER_INFO |
| 2018-10-11 | Name : The remote Amazon Linux 2 host is missing a security update. File : al2_ALAS-2018-1086.nasl - Type : ACT_GATHER_INFO |
| 2018-10-05 | Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2018-1086.nasl - Type : ACT_GATHER_INFO |
| 2018-10-04 | Name : The remote Debian host is missing a security update. File : debian_DLA-1531.nasl - Type : ACT_GATHER_INFO |
| 2018-10-02 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-4308.nasl - Type : ACT_GATHER_INFO |
| 2018-10-01 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-c0a1284064.nasl - Type : ACT_GATHER_INFO |
| 2018-09-27 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-d77cc41f35.nasl - Type : ACT_GATHER_INFO |
| 2018-09-24 | Name : The remote Slackware host is missing a security update. File : Slackware_SSA_2018-264-01.nasl - Type : ACT_GATHER_INFO |
| 2018-08-17 | Name : The remote PhotonOS host is missing multiple security updates. File : PhotonOS_PHSA-2018-1_0-0135.nasl - Type : ACT_GATHER_INFO |
| 2018-05-03 | Name : The remote Debian host is missing a security update. File : debian_DLA-1369.nasl - Type : ACT_GATHER_INFO |
| 2018-05-02 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-4187.nasl - Type : ACT_GATHER_INFO |
| 2018-05-02 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-4188.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2018-11-15 00:21:26 |
|
| 2018-10-25 17:21:49 |
|
| 2018-10-02 00:21:25 |
|
| 2018-10-02 00:19:01 |
|
