Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4162-1)
critical Nessus Plugin ID 130151
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Synopsis
The remote Ubuntu host is missing one or more security-related patches.Description
It was discovered that the RSI 91x Wi-Fi driver in the Linux kernel did not did not handle detach operations correctly, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-21008)Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-14814, CVE-2019-14815, CVE-2019-14816)
Matt Delco discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform bounds checking when handling coalesced MMIO write operations. A local attacker with write access to /dev/kvm could use this to cause a denial of service (system crash).
(CVE-2019-14821)
Hui Peng and Mathias Payer discovered that the USB audio driver for the Linux kernel did not properly validate device meta data. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15117)
Hui Peng and Mathias Payer discovered that the USB audio driver for the Linux kernel improperly performed recursion while handling device meta data. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15118)
It was discovered that the Technisat DVB-S/S2 USB device driver in the Linux kernel contained a buffer overread. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2019-15505)
Brad Spengler discovered that a Spectre mitigation was improperly implemented in the ptrace susbsystem of the Linux kernel. A local attacker could possibly use this to expose sensitive information.
(CVE-2019-15902)
It was discovered that the SMB networking file system implementation in the Linux kernel contained a buffer overread. An attacker could use this to expose sensitive information (kernel memory). (CVE-2019-15918).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected packages.See Also
Plugin Details
Severity: Critical
ID: 130151
File Name: ubuntu_USN-4162-1.nasl
Version: 1.3
Type: local
Agent: unix
Family: Ubuntu Local Security Checks
Published: 10/22/2019
Updated: 9/17/2020
Dependencies: ssh_get_info.nasl, linux_alt_patch_detect.nasl
Risk Information
VPR
Risk Factor: Critical
Score: 9.2
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Temporal Vector: E:U/RL:OF/RC:C
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-oem, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-snapdragon, p-cpe:/a:canonical:ubuntu_linux:linux-image-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-aws-hwe, p-cpe:/a:canonical:ubuntu_linux:linux-image-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-hwe-16.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae-hwe-16.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-gke-4.15, p-cpe:/a:canonical:ubuntu_linux:linux-image-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency-hwe-16.04, p-cpe:/a:canonical:ubuntu_linux:linux-image-oem, p-cpe:/a:canonical:ubuntu_linux:linux-image-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi2, p-cpe:/a:canonical:ubuntu_linux:linux-image-snapdragon, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual, p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual-hwe-16.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:18.04:-:lts
Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l
Exploit Ease: No known exploits are available
Patch Publication Date: 10/22/2019
Vulnerability Publication Date: 8/16/2019
Reference Information
CVE: CVE-2018-21008, CVE-2019-14814, CVE-2019-14815, CVE-2019-14816, CVE-2019-14821, CVE-2019-15117, CVE-2019-15118, CVE-2019-15505, CVE-2019-15902, CVE-2019-15918
USN: 4162-1