[QSA-0929231] Linux kernel vulnerabilities
Qlustar Security Advisory 0929231
September 29th, 2023
Summary:
The system could crash or be made to run programs as an administrator.
Package(s) : linux-image-ql-generic,
qlustar-module-core-focal-amd64-12.0.2,
qlustar-module-core-centos7-amd64-12.0.2,
qlustar-module-core-jammy-amd64-13.0,
qlustar-module-core-centos8-amd64-13.0
Qlustar releases : 12.0, 13
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 5.15.x Linux kernel series since the last Qlustar 13.0 release based on 5.15.122. 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 5.15.122 up to the current Qlustar kernel 5.15.133:
Linux kernel 5.15.133 Linux kernel 5.15.132 Linux kernel 5.15.131 Linux kernel 5.15.130 Linux kernel 5.15.129 Linux kernel 5.15.128 Linux kernel 5.15.127 Linux kernel 5.15.126 Linux kernel 5.15.125 Linux kernel 5.15.124 Linux kernel 5.15.123
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 5.4.250. 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 5.4.250 up to the current Qlustar kernel 5.4.257:
Linux kernel 5.4.257 Linux kernel 5.4.256 Linux kernel 5.4.255 Linux kernel 5.4.254 Linux kernel 5.4.253 Linux kernel 5.4.252 Linux kernel 5.4.251
Update instructions:
The problem can be corrected by updating your system to the following or more recent package versions:
For Qlustar 13
linux-image-ql-generic 5.15.133-ql-generic-13.0-9
qlustar-module-core-jammy-amd64-13.1 13.1.0-b565f1513
For Qlustar 12.0
linux-image-ql-generic 5.4.257-ql-generic-12.0-29
qlustar-module-core-focal-amd64-12.0.3 12.0.3.0-b566f1512
Special Update instructions:
In addition to the steps described in the general Qlustar Update Instructions these updates require the following:
- On Qlustar 12, also perform the following manual steps if you haven’t done so yet: Write the
dnsmasq and slurm config with QluMan before rebooting. If your cluster was installed with a
release earlier than 12.0.0.8-b546f1425 you will have to generate new LDAP certificates at
some point since the earlier ones were generated with a 1 year validity. Now they are
generated with an unlimited validity. To check the expiration date execute
# openssl x509 -dates -in /etc/ssl/certs/qlustar-ca-cert.pem | grep notAfter
To regenerate the certificate with unlimited validity execute
# qluman-ldap-cli --update-certs
before rebooting the whole cluster.
Please note that we no longer provide 12.x AlmaLinux 8 modules for Qlustar 12. If you want to use AlmaLinux 8 under Qlustar 12, please switch to the 13.x image modules and create a corresponding chroot for it.