Executive Summary
Summary | |
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Title | Linux kernel (Xenial HWE) vulnerabilities |
Informations | |||
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Name | USN-3821-2 | First vendor Publication | 2018-11-14 |
Vendor | Ubuntu | Last vendor Modification | 2018-11-14 |
Severity (Vendor) | N/A | Revision | N/A |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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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:N/I:N/A:C) | |||
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Cvss Base Score | 7.1 | Attack Range | Network |
Cvss Impact Score | 6.9 | 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 14.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty Details: USN-3821-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly ensure that xattr information remained in inode bodies. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10880) It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053) Wen Xu discovered that the f2fs filesystem implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious f2fs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13096) Wen Xu and Po-Ning Tseng discovered that the btrfs filesystem implementation in the Linux kernel did not properly handle relocations in some situations. An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14609) Wen Xu discovered that the HFS+ filesystem implementation in the Linux kernel did not properly handle malformed catalog data in some situations. An attacker could use this to construct a malicious HFS+ image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14617) Jann Horn discovered that the procfs file system implementation in the Linux kernel did not properly restrict the ability to inspect the kernel stack of an arbitrary task. A local attacker could use this to expose sensitive information. (CVE-2018-17972) It was discovered that the KVM implementation in the Linux kernel on ARM 64bit processors did not properly handle some ioctls. An attacker with the privilege to create KVM-based virtual machines could use this to cause a denial of service (host system crash) or execute arbitrary code in the host. (CVE-2018-18021) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 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-3821-2 |
CWE : Common Weakness Enumeration
% | Id | Name |
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25 % | CWE-787 | Out-of-bounds Write (CWE/SANS Top 25) |
25 % | CWE-476 | NULL Pointer Dereference |
12 % | CWE-362 | Race Condition |
12 % | CWE-190 | Integer Overflow or Wraparound (CWE/SANS Top 25) |
12 % | CWE-125 | Out-of-bounds Read |
12 % | CWE-20 | Improper Input Validation |
CPE : Common Platform Enumeration
Nessus® Vulnerability Scanner
Date | Description |
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2019-01-03 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-f392ab8c84.nasl - Type : ACT_GATHER_INFO |
2019-01-03 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-ec3bf1b228.nasl - Type : ACT_GATHER_INFO |
2019-01-03 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-ddbaca855e.nasl - Type : ACT_GATHER_INFO |
2019-01-03 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-9f4381d8c4.nasl - Type : ACT_GATHER_INFO |
2019-01-03 | Name : The remote Fedora host is missing a security update. File : fedora_2018-50075276e8.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 |
2018-11-09 | Name : The remote Amazon Linux 2 host is missing a security update. File : al2_ALAS-2018-1100.nasl - Type : ACT_GATHER_INFO |
2018-11-08 | Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2018-1100.nasl - Type : ACT_GATHER_INFO |
2018-10-18 | Name : The remote PhotonOS host is missing multiple security updates. File : PhotonOS_PHSA-2018-2_0-0100.nasl - Type : ACT_GATHER_INFO |
2018-10-17 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-2ee3411cb8.nasl - Type : ACT_GATHER_INFO |
2018-10-11 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-94315e9a6b.nasl - Type : ACT_GATHER_INFO |
2018-10-10 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-4313.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 |
2018-09-21 | Name : The remote PhotonOS host is missing multiple security updates. File : PhotonOS_PHSA-2018-1_0-0184.nasl - Type : ACT_GATHER_INFO |
2018-07-24 | Name : The remote Fedora host is missing a security update. File : fedora_2018-8484550fff.nasl - Type : ACT_GATHER_INFO |
2018-07-20 | Name : The remote Debian host is missing a security update. File : debian_DLA-1423.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2018-11-15 05:17:27 |
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