[QSA-0706211] Linux kernel vulnerabilities
Qlustar Security Advisory 0706211
July 6th, 2021
Summary:
The system could crash or be made to run programs as an administrator.
Package(s) : linux-image-ql-generic,
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-module-core-focal-amd64-12.0.0,
qlustar-module-core-centos7-amd64-12.0.0,
qlustar-module-core-centos8-amd64-12.0.0
Qlustar releases : 11.0, 12.0
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 5.4.x Linux kernel series since the last Qlustar 12.0 release based on 5.4.114. 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 5.4.114 up to the current Qlustar kernel 5.4.128:
Linux kernel 5.4.128 Linux kernel 5.4.127 Linux kernel 5.4.126 Linux kernel 5.4.125 Linux kernel 5.4.124 Linux kernel 5.4.123 Linux kernel 5.4.122 Linux kernel 5.4.121 Linux kernel 5.4.120 Linux kernel 5.4.119 Linux kernel 5.4.118 Linux kernel 5.4.117 Linux kernel 5.4.116 Linux kernel 5.4.115
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 4.19.188. 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 4.19.188 up to the current Qlustar kernel 4.19.195:
Linux kernel 4.19.195 Linux kernel 4.19.194 Linux kernel 4.19.193 Linux kernel 4.19.192 Linux kernel 4.19.191 Linux kernel 4.19.190 Linux kernel 4.19.189
Update instructions:
The problem can be corrected by updating your system to the following or more recent package versions:
For Qlustar 12.0
linux-image-ql-generic 5.4.128-ql-generic-12.0-9
qlustar-module-core-focal-amd64-12.0.0 12.0.0.4-b542f1382
qlustar-module-core-centos7-amd64-12.0.0 12.0.0.4-b542f1382
qlustar-module-core-centos8-amd64-12.0.0 12.0.0.4-b542f1382
For Qlustar 11.0
linux-image-ql-generic 4.19.195-ql-generic-11.0-24
qlustar-module-core-bionic-amd64-11.0.1 11.0.1.8-b543f1384
qlustar-module-core-centos7-amd64-11.0.1 11.0.1.8-b543f1384
qlustar-module-core-centos8-amd64-11.0.1 11.0.1.8-b543f1384
Special Update instructions:
In addition to the steps described in the general Qlustar Update Instructions these updates require the following:
- On Qlustar 12: Also write the dnsmasq config with QluMan before rebooting.
- 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.