[QSA-1219222] Security Update Bundle

Qlustar Security Advisory 1219222

December 19th, 2022

Summary:

A Qlustar security update bundle is a cumulative update of packages that are taken from upstream Debian/Ubuntu without modification. Only packages that are used in a typical HPC/Storage cluster installation are mentioned in Qlustar Security Advisories. Other non-HPC related updates also enter the Qlustar repository, but their functionality is not separately verified by the Qlustar team. To track these updates subscribe to the general security mailing lists of Debian/Ubuntu and/or CentOS/AlmaLinux.

Package(s)       : see upstream description of individual package
Qlustar releases : 11.0, 12.0
Affected versions: All versions prior to this update
Vulnerability    : see upstream description of individual package
Problem type     : see upstream description of individual package
Qlustar-specific : no
CVE Id(s)        : see upstream description of individual package

This update includes several security related package updates from Debian/Ubuntu and CentOS/AlmaLinux. The following list provides references to the upstream security report of the corresponding packages. You can view the original upstream advisory by clicking on the corresponding title.

Relevant to Qlustar 12.0 and 11.0

X.Org X Server vulnerabilities

Jan-Niklas Sohn discovered that X.Org X Server extensions contained multiple security issues. An attacker could possibly use these issues to cause the X Server to crash, execute arbitrary code, or escalate privileges.

QEMU vulnerabilities

It was discovered that QEMU did not properly manage memory when it transfers the USB packets. A malicious guest attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code.

It was discovered that QEMU did not properly manage memory when it processing repeated messages to cancel the current SCSI request. A malicious privileged guest attacker could use this issue to cause QEMU to crash, resulting in a denial of service.

Python vulnerabilities

Nicky Mouha discovered that Python incorrectly handled certain SHA-3 internals. An attacker could possibly use this issue to cause a crash or execute arbitrary code.

It was discovered that Python incorrectly handled certain IDNA inputs. An attacker could possibly use this issue to expose sensitive information denial of service, or cause a crash.

GNU binutils vulnerability

It was discovered that GNU binutils incorrectly handled certain COFF files. An attacker could possibly use this issue to cause a crash or execute arbitrary code.

libxml2 vulnerabilities

It was discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to cause a crash, expose sensitive information or execute arbitrary code.

X.Org X Server vulnerabilities

It was discovered that X.Org X Server incorrectly handled certain inputs. An attacker could use these issues to cause the server to crash, resulting in a denial of service, or possibly execute arbitrary code.

PHP vulnerabilities

It was discovered that PHP incorrectly handled certain gzip files. An attacker could possibly use this issue to cause a denial of service.

It was discovered that PHP incorrectly handled certain cookies. An attacker could possibly use this issue to compromise the data.

It was discovered that PHP incorrectly handled certain image fonts. An attacker could possibly use this issue to expose sensitive information.

Nicky Mouha discovered that PHP incorrectly handled certain SHA-3 operations. An attacker could possibly use this issue to cause a crash or execute arbitrary code.

Relevant to Qlustar 12.0

MariaDB vulnerabilities

Several security issues were discovered in MariaDB and this update includes the new upstream MariaDB 10.3.37 version in Qlustar 12 to fix these issues. In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes.

CentOS 7.9 / AlmaLinux 8.6 security updates

Please check the CentOS mailing list for details about CentOS 7 updates and the AlmaLinux Errata site for details about AlmaLinux 8 updates that entered this release (everything from October 27th 2022 December 16th 2022).

Update instructions:

The problem can be corrected by updating your system to the following or more recent package versions:

For Qlustar 12.0

qlustar-module-core-focal-amd64-12.0.1     12.0.2.0-b556f1460
qlustar-module-core-centos7-amd64-12.0.1   12.0.2.0-b556f1460
qlustar-module-core-centos8-amd64-12.0.1   12.0.2.0-b556f1460

For Qlustar 11.0

qlustar-module-core-bionic-amd64-11.0.1    11.0.1.19-b549f1462

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.
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.