[QSA-1005231] Security Update Bundle

Qlustar Security Advisory 1005231

October 5th, 2023

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 : 13
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 13 only

GNU C Library vulnerability

It was discovered that the GNU C Library incorrectly handled the GLIBC_TUNABLES environment variable. An attacker could possibly use this issue to perform a privilege escalation attack. (Looney Tunables / CVE-2023-4911)

GRUB2 vulnerabilities

It was discovered that a specially crafted file system image could cause a heap-based out-of-bounds write. A local attacker could potentially use this to perform arbitrary code execution bypass and bypass secure boot protections.

It was discovered that a specially crafted file system image could cause an out-of-bounds read. A physically-present attacker could possibly use this to leak sensitive information to the GRUB pager.

Update instructions:

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

For Qlustar 13

qlustar-module-core-jammy-amd64-13.1       13.1.1-b568f1514
qlustar-module-core-centos8-amd64-13.1     13.1.1-b568f1515