[QSA-1017252]
Security Update Bundle

Qlustar Security Advisory 1017252

October 17th, 2025

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 AlmaLinux.

Package(s)       : see upstream description of individual package
Qlustar releases : 13, 14
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 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 and/or 14 – Ubuntu

If an advisory applies only to Qlustar 13 or 14, it is noted in its description.

Samba vulnerabilities

Andrew Walker discovered that Samba incorrectly initialized memory in the vfs_streams_xattr module. An authenticated attacker could possibly use this issue to obtain sensitive information.

Igor Morgenstern discovered that Samba incorrectly handled names passed to the WINS hook program. An attacker could possibly use this issue to execute arbitrary code.

OpenSSL vulnerabilities

Stanislav Fort discovered that OpenSSL incorrectly handled memory when trying to decrypt CMS messages encrypted with password-based encryption. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code.

dpkg vulnerability

It was discovered that dpkg incorrectly handled removing certain temporary directories. An attacker could possibly use this issue to consume disk space, leading to a denial of service.

GNU C Library vulnerability

It was discovered that the GNU C Library incorrectly handled the regcomp function when memory allocation failures occured. An attacker could use this issue to cause applications to crash, leading to a denial of service, or possibly execute arbitrary code.

PAM vulnerability

It was discovered that the PAM pam_access module incorrectly parsed certain rules as hostnames. An attacker could possibly use this issue to spoof hostnames and bypass access restrictions. This issue only affected Qlustar 14.

Vim vulnerabilities

It was discovered that Vim incorrectly handled file extraction when opening maliciously crafted zip or tar archives. An attacker could possibly use this issue to create or overwrite files on the system and execute arbitrary code. This issue only affected Qlustar 14.

CUPS vulnerabilities

It was discovered that CUPS incorrectly handled authentication types other than Basic. An attacker could possibly use this issue to bypass authentication.

It was discovered that CUPS incorrectly handled deserialization and validation of printer attributes. An attacker could possibly use this issue to cause a denial of service.

QEMU vulnerabilities

It was discovered that QEMU incorrectly handled certain virtio devices. A privileged guest attacker could use this issue to cause QEMU to crash, leading to a denial of service, or possibly execute arbitrary code.

It was discovered that QEMU incorrectly handled SDHCI device emulation. A guest attacker could possibly use this issue to cause QEMU to crash, leading to a denial of service.

It was discovered that QEMU incorrectly handled calculating the checksum of a short-sized fragmented packet. A guest attacker could possibly use this issue to cause QEMU to crash, leading to a denial of service. This issue only affected Qlustar 14.

It was discovered that the QEMU qemu-img utility incorrectly handled certain crafted image files. An attacker could use this issue to cause QEMU to consume resources, leading to a denial of service, or possibly read and write to an existing external file.

It was discovered that QEMU incorrectly handled the RSS feature on virtio-net devices. A privileged guest attacker could possibly use this issue to cause QEMU to crash, leading to a denial of service.

It was discovered that QEMU incorrectly handled the NBD server. An attacker could use this issue to cause QEMU to consume resources, leading to a denial of service.

It was discovered that QEMU incorrectly handled certain USB devices. A guest attacker could possibly use this issue to cause QEMU to crash, leading to a denial of service.

It was discovered that the QEMU package incorrectly set up a binfmt_misc registration with the C (Credential) flag. A local attacker could use this with a suid/sgid binary to escalate privileges. This update will no longer run foreign-architecture binaries with suid/sgid with elevated privileges.

libxml2 vulnerability

Nikita Sveshnikov discovered that libxml2 incorrectly handled recursion when processing XPath expressions. An attacker could possibly use this issue to cause a denial of service.

AlmaLinux 8.10 security updates

Please check the AlmaLinux Errata site for details about AlmaLinux 8 updates that entered this release (everything from August 26th until October 16th).

Update instructions:

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

For Qlustar 14

qlustar-module-core-noble-amd64-14.0       14.0.4-b589f1603
qlustar-module-core-centos8-amd64-14.0     14.0.4-b589f1603

For Qlustar 13

qlustar-module-core-jammy-amd64-13.3       13.3.4-b588f1602
qlustar-module-core-centos8-amd64-13.3     13.3.4-b588f1602

Special Update instructions:

In addition to the steps described in the general Qlustar Update Instructions these updates require the following:

• No special instructions