Executive Summary
| Summary | |
|---|---|
| Title | Linux kernel vulnerabilities |
| Informations | |||
|---|---|---|---|
| Name | USN-4094-1 | First vendor Publication | 2019-08-13 |
| Vendor | Ubuntu | Last vendor Modification | 2019-08-13 |
| 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:A/AC:L/Au:N/C:C/I:C/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 8.3 | Attack Range | Adjacent network |
| Cvss Impact Score | 10 | Attack Complexity | Low |
| Cvss Expoit Score | 6.5 | 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 Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-gke-4.15: Linux kernel for Google Container Engine (GKE) systems - linux-kvm: Linux kernel for cloud environments - linux-oem: Linux kernel for OEM processors - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi2: Linux kernel for Raspberry Pi 2 - linux-snapdragon: Linux kernel for Snapdragon processors - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-hwe: Linux hardware enablement (HWE) kernel Details: 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 XFS filesystem implementation in the Linux kernel did not properly track inode validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service (system crash). (CVE-2018-13093) Wen Xu discovered that the f2fs file system 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-2018-13097, CVE-2018-13099, CVE-2018-13100, CVE-2018-14614, CVE-2018-14616, CVE-2018-13096, CVE-2018-13098, CVE-2018-14615) Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious btrfs image that, when mounted, could cause a denial of service (system crash). (CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14613, 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) Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem of the Linux kernel did not properly initialize new files in some situations. A local attacker could use this to expose sensitive information. (CVE-2018-16862) Hui Peng and Mathias Payer discovered that the USB subsystem in the Linux kernel did not properly handle size checks when handling an extra USB descriptor. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-20169) It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel when certain failure conditions occurred. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-20856) Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux kernel did not properly validate elliptic curve parameters during Diffie-Hellman key exchange in some situations. An attacker could use this to expose sensitive information. (CVE-2018-5383) It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10126) Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-1125) It was discovered that the PowerPC dlpar implementation in the Linux kernel did not properly check for allocation errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-12614) It was discovered that a NULL pointer dereference vulnerabilty existed in the Near-field communication (NFC) implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2019-12818) It was discovered that the MDIO bus devices subsystem in the Linux kernel improperly dropped a device reference in an error condition, leading to a use-after-free. An attacker could use this to cause a denial of service (system crash). (CVE-2019-12819) It was discovered that a NULL pointer dereference vulnerability existed in the Near-field communication (NFC) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-12984) Jann Horn discovered a use-after-free vulnerability in the Linux kernel when accessing LDT entries in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-13233) Jann Horn discovered that the ptrace implementation in the Linux kernel did not properly record credentials in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2019-13272) It was discovered that the Empia EM28xx DVB USB device driver implementation in the Linux kernel contained a use-after-free vulnerability when disconnecting the device. An attacker could use this to cause a denial of service (system crash). (CVE-2019-2024) It was discovered that the USB video device class implementation in the Linux kernel did not properly validate control bits, resulting in an out of bounds buffer read. A local attacker could use this to possibly expose sensitive information (kernel memory). (CVE-2019-2101) It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly validate the BSS descriptor. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-3846) It was discovered that the Appletalk IP encapsulation driver in the Linux kernel did not properly prevent kernel addresses from being copied to user space. A local attacker with the CAP_NET_ADMIN capability could use this to expose sensitive information. (CVE-2018-20511) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: 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-4094-1 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 31 % | CWE-476 | NULL Pointer Dereference |
| 19 % | CWE-125 | Out-of-bounds Read |
| 16 % | CWE-416 | Use After Free |
| 6 % | CWE-787 | Out-of-bounds Write (CWE/SANS Top 25) |
| 6 % | CWE-369 | Divide By Zero |
| 6 % | CWE-200 | Information Exposure |
| 3 % | CWE-400 | Uncontrolled Resource Consumption ('Resource Exhaustion') |
| 3 % | CWE-362 | Race Condition |
| 3 % | CWE-347 | Improper Verification of Cryptographic Signature |
| 3 % | CWE-190 | Integer Overflow or Wraparound (CWE/SANS Top 25) |
| 3 % | CWE-119 | Failure to Constrain Operations within the Bounds of a Memory Buffer |
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_2018-87ba0312c2.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 a security update. File : fedora_2018-50075276e8.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 |
| 2018-12-28 | Name : The remote EulerOS host is missing multiple security updates. File : EulerOS_SA-2018-1433.nasl - Type : ACT_GATHER_INFO |
| 2018-12-21 | 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 |
| 2018-10-18 | Name : The remote PhotonOS host is missing multiple security updates. File : PhotonOS_PHSA-2018-2_0-0100.nasl - Type : ACT_GATHER_INFO |
| 2018-10-18 | Name : The remote host is missing a macOS update that fixes multiple security vulner... File : macos_10_14.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 |
| 2018-09-18 | Name : The remote Apple TV device is affected by multiple vulnerabilities. File : appletv_12.nasl - Type : ACT_GATHER_INFO |
| 2018-08-07 | Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2018-1048.nasl - Type : ACT_GATHER_INFO |
| 2018-08-07 | Name : The remote Amazon Linux 2 host is missing a security update. File : al2_ALAS-2018-1051.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 |
| 2018-07-17 | Name : The remote host is missing a macOS or Mac OS X security update that fixes mul... File : macosx_SecUpd2018-004.nasl - Type : ACT_GATHER_INFO |
| 2018-07-17 | Name : The remote host is missing a macOS update that fixes multiple security vulner... File : macos_10_13_6.nasl - Type : ACT_GATHER_INFO |
| 2018-06-05 | Name : The remote Apple TV device is affected by multiple vulnerabilities. File : appletv_11_4.nasl - Type : ACT_GATHER_INFO |
| 2018-06-05 | Name : The remote host is missing a macOS update that fixes multiple security vulner... File : macos_10_13_5.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2019-09-10 12:14:20 |
|
| 2019-08-13 21:19:10 |
|
