[QSA-1009201] Linux kernel vulnerabilities

Qlustar Security Advisory 1009201

October 9th, 2020

Summary:

The system could crash or be made to run programs as an administrator.

    Package(s)       : linux-image-ql-generic,
                       qlustar-module-core-xenial-amd64-10.1.1,
                       qlustar-module-core-bionic-amd64-11.0.1,
                       qlustar-module-core-centos7-amd64-11.0.1,
                       qlustar-module-core-centos8-amd64-11.0.1
    Qlustar releases : 10.1, 11.0
    Affected versions: All versions prior to this update
    Vulnerability    : privilege escalation/denial of service
    Problem type     : local
    Qlustar-specific : no
    CVE Id(s)        : Not documented
  

A number of vulnerabilities and bugs have been discovered in the 4.19.x Linux kernel series since the last Qlustar 11.0 release based on 4.19.140. They may lead to a denial of service or privilege escalation. Please check the following web pages that contain details of the fixes in each release after 4.19.140 up to the current Qlustar kernel 4.19.150:

    Linux kernel 4.19.150
    Linux kernel 4.19.149
    Linux kernel 4.19.148
    Linux kernel 4.19.147
    Linux kernel 4.19.146
    Linux kernel 4.19.145
    Linux kernel 4.19.144
    Linux kernel 4.19.143
    Linux kernel 4.19.142
    Linux kernel 4.19.141
   

A number of vulnerabilities and bugs have been discovered in the 4.14.x Linux kernel series since the last Qlustar 10.1 release based on 4.14.193. They may lead to a denial of service or privilege escalation. Please check the following web pages that contain details of the fixes in each release after 4.14.193 up to the current Qlustar kernel 4.14.200:

    Linux kernel 4.14.200
    Linux kernel 4.14.199
    Linux kernel 4.14.198
    Linux kernel 4.14.197
    Linux kernel 4.14.196
    Linux kernel 4.14.195
    Linux kernel 4.14.194
  

Update instructions:

The problem can be corrected by updating your system to the following or more recent package versions (follow the Qlustar Update Instructions and on Qlustar 11 also perform the manual steps '7. Migration to GRUB PXE booting' and '11. Adjust root bash shell initialization' as described in the Release Notes if you haven't done so yet):

For Qlustar 11.0

    linux-image-ql-generic                     4.19.150-ql-generic-11.0-19
    qlustar-module-core-bionic-amd64-11.0.1    11.0.1.3-b522f1314
    qlustar-module-core-centos7-amd64-11.0.1   11.0.1.3-b522f1314
  

For Qlustar 10.1

    linux-image-ql-generic                     4.14.200-ql-generic-10.1-30
    qlustar-module-core-xenial-amd64-10.1.1    10.1.1.16-b521f1313