Executive Summary
Summary | |
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Title | Linux kernel (Azure) vulnerabilities |
Informations | |||
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Name | USN-3871-5 | First vendor Publication | 2019-02-07 |
Vendor | Ubuntu | Last vendor Modification | 2019-02-07 |
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:L/AC:L/Au:N/C:C/I:C/A:C) | |||
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Cvss Base Score | 7.2 | Attack Range | Local |
Cvss Impact Score | 10 | 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 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-azure: Linux kernel for Microsoft Azure Cloud systems Details: Wen Xu discovered that a use-after-free vulnerability existed in the ext4 filesystem implementation in the Linux kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10876, CVE-2018-10879) Wen Xu discovered that a buffer overflow existed in the ext4 filesystem implementation in the Linux kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10877) Wen Xu discovered that an out-of-bounds write vulnerability existed in the ext4 filesystem implementation in the Linux kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10878, CVE-2018-10882) 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) Wen Xu discovered that the ext4 file system implementation in the Linux kernel could possibly perform an out of bounds write when updating the journal for an inline file. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10883) It was discovered that a race condition existed in the vsock address family implementation of the Linux kernel that could lead to a use-after-free condition. A local attacker in a guest virtual machine could use this to expose sensitive information (host machine kernel memory). (CVE-2018-14625) Cfir Cohen discovered that a use-after-free vulnerability existed in the KVM implementation of the Linux kernel, when handling interrupts in environments where nested virtualization is in use (nested KVM virtualization is not enabled by default in Ubuntu kernels). A local attacker in a guest VM could possibly use this to gain administrative privileges in a host machine. (CVE-2018-16882) 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) Jann Horn discovered that the mremap() system call in the Linux kernel did not properly flush the TLB when completing, potentially leaving access to a physical page after it has been released to the page allocator. A local attacker could use this to cause a denial of service (system crash), expose sensitive information, or possibly execute arbitrary code. (CVE-2018-18281) Wei Wu discovered that the KVM implementation in the Linux kernel did not properly ensure that ioapics were initialized. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-19407) It was discovered that the debug interface for the Linux kernel's HID subsystem did not properly perform bounds checking in some situations. An attacker with access to debugfs could use this to cause a denial of service or possibly gain additional privileges. (CVE-2018-9516) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: Ubuntu 16.04 LTS: 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-3871-5 |
CWE : Common Weakness Enumeration
% | Id | Name |
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42 % | CWE-787 | Out-of-bounds Write (CWE/SANS Top 25) |
33 % | CWE-416 | Use After Free |
8 % | CWE-476 | NULL Pointer Dereference |
8 % | CWE-459 | Incomplete Cleanup |
8 % | CWE-362 | Race Condition |
CPE : Common Platform Enumeration
Nessus® Vulnerability Scanner
Date | Description |
---|---|
2019-01-14 | Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2019-1145.nasl - Type : ACT_GATHER_INFO |
2019-01-10 | Name : The remote Amazon Linux 2 host is missing a security update. File : al2_ALAS-2019-1145.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_2018-9f4381d8c4.nasl - Type : ACT_GATHER_INFO |
2019-01-03 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-87ba0312c2.nasl - Type : ACT_GATHER_INFO |
2019-01-03 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-6e8c330d50.nasl - Type : ACT_GATHER_INFO |
2019-01-03 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-3857a8b41a.nasl - Type : ACT_GATHER_INFO |
2019-01-03 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-2645eb8dab.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 |
2018-12-21 | Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2018-1133.nasl - Type : ACT_GATHER_INFO |
2018-12-20 | Name : The remote Amazon Linux 2 host is missing a security update. File : al2_ALAS-2018-1133.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 |
2018-11-09 | 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 |
2018-10-17 | Name : The remote Fedora host is missing one or more security updates. File : fedora_2018-2ee3411cb8.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 |
2018-10-02 | Name : The remote PhotonOS host is missing multiple security updates. File : PhotonOS_PHSA-2018-1_0-0188.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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2019-02-08 00:19:14 |
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