漏洞类别:Ubuntu
漏洞等级:
漏洞信息
It was discovered that the Xen netback driver in the Linux kernel did not properly perform input validation in some situations.
It was discovered that the generic SCSI driver in the Linux kernel did not properly enforce permissions on kernel memory access.
It was discovered that an integer overflow existed in the CD-ROM driver of the Linux kernel.
It was discovered that an integer overflow existed in the HID Bluetooth implementation in the Linux kernel that could lead to a buffer overwrite.
漏洞危害
An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-15471)
A local attacker could use this to expose sensitive information or possibly elevate privileges. (CVE-2017-13168)
A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-16658)
An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-9363)
解决方案
Refer to Ubuntu advisory USN-3820-1 for affected packages and patching details, or update with your package manager.
Patch:
Following are links for downloading patches to fix the vulnerabilities:
USN-3820-1: 18.04 (bionic) on src (linux-image-4.15.0-1031-azure)
USN-3820-1: 18.04 (bionic) on src (linux-image-kvm)
USN-3820-1: 18.04 (bionic) on src (linux-image-oem)
USN-3820-1: 18.04 (bionic) on src (linux-image-4.15.0-1028-raspi2)
USN-3820-1: 18.04 (bionic) on src (linux-image-raspi2)
USN-3820-1: 18.04 (bionic) on src (linux-image-aws)
USN-3820-1: 18.04 (bionic) on src (linux-image-azure)
USN-3820-1: 18.04 (bionic) on src (linux-image-snapdragon)
USN-3820-1: 18.04 (bionic) on src (linux-image-4.15.0-1026-oem)
USN-3820-1: 18.04 (bionic) on src (linux-image-4.15.0-39-generic)
USN-3820-1: 18.04 (bionic) on src (linux-image-4.15.0-1026-kvm)
USN-3820-1: 18.04 (bionic) on src (linux-image-4.15.0-1024-gcp)
USN-3820-1: 18.04 (bionic) on src (linux-image-generic)
USN-3820-1: 18.04 (bionic) on src (linux-image-4.15.0-39-lowlatency)
USN-3820-1: 18.04 (bionic) on src (linux-image-gke)
USN-3820-1: 18.04 (bionic) on src (linux-image-gcp)
USN-3820-1: 18.04 (bionic) on src (linux-image-4.15.0-39-generic-lpae)
USN-3820-1: 18.04 (bionic) on src (linux-image-lowlatency)
USN-3820-1: 18.04 (bionic) on src (linux-image-4.15.0-1027-aws)
USN-3820-1: 18.04 (bionic) on src (linux-image-4.15.0-39-snapdragon)
USN-3820-1: 18.04 (bionic) on src (linux-image-generic-lpae)
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