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[QSA-0320212] Security Update Bundle

Qlustar Security Advisory 0320212

March 20th, 2021


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.


    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. 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

GLib vulnerability

It was discovered that GLib incorrectly handled certain symlinks when replacing files. If a user or automated system were tricked into extracting a specially crafted file with File Roller, a remote attacker could possibly create files outside of the intended directory.

OpenSSH vulnerability

It was discovered that the OpenSSH ssh-agent incorrectly handled memory. A remote attacker able to connect to the agent could use this issue to cause it to crash, resulting in a denial of service, or possibly execute arbitrary code.

Git vulnerability

Matheus Tavares discovered that Git incorrectly handled delay-capable clean/smudge filters when being used on case-insensitive filesystems. A remote attacker could possibly use this issue to execute arbitrary code.

GLib vulnerabilities

Krzesimir Nowak discovered that GLib incorrectly handled certain large buffers. A remote attacker could use this issue to cause applications linked to GLib to crash, resulting in a denial of service, or possibly execute arbitrary code.

Kevin Backhouse discovered that GLib incorrectly handled certain memory allocations. A remote attacker could use this issue to cause applications linked to GLib to crash, resulting in a denial of service, or possibly execute arbitrary code.

Python vulnerabilities

It was discovered that Python incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code or cause a denial of service.

xterm vulnerability

Tavis Ormandy discovered that xterm incorrectly handled certain character sequences. A remote attacker could use this issue to cause xterm to crash, resulting in a denial of service, or possibly execute arbitrary code.

OpenLDAP vulnerability

Pasi Saarinen discovered that OpenLDAP incorrectly handled certain short timestamps. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service.

OpenSSL vulnerabilities

Paul Kehrer discovered that OpenSSL incorrectly handled certain input lengths in EVP functions. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service.

Tavis Ormandy discovered that OpenSSL incorrectly handled parsing issuer fields. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service.

QEMU vulnerabilities

It was discovered that QEMU incorrectly handled memory in iSCSI emulation. An attacker inside the guest could possibly use this issue to obtain sensitive information.

Alexander Bulekov discovered that QEMU incorrectly handled Intel e1000e emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service.

Alexander Bulekov discovered that QEMU incorrectly handled memory region cache. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service.

Cheol-woo Myung discovered that QEMU incorrectly handled Intel e1000e emulation. An attacker inside the guest could use this issue to cause a denial of service.

Wenxiang Qian discovered that QEMU incorrectly handled ATAPI emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service.

It was discovered that QEMU incorrectly handled VirtFS directory sharing. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service.

OpenLDAP vulnerabilities

It was discovered that OpenLDAP incorrectly handled Certificate Exact Assertion processing. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service.

It was discovered that OpenLDAP incorrectly handled saslAuthzTo processing. A remote attacker could use this issue to cause OpenLDAP to crash, resulting in a denial of service, or possibly execute arbitrary code.

It was discovered that OpenLDAP incorrectly handled Return Filter control handling. A remote attacker could use this issue to cause OpenLDAP to crash, resulting in a denial of service, or possibly execute arbitrary code.

It was discovered that OpenLDAP incorrectly handled certain cancel operations. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service.

It was discovered that OpenLDAP incorrectly handled Certificate List Extract Assertion processing. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service.

It was discovered that OpenLDAP incorrectly handled X.509 DN parsing. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service.

CentOS 7.9 / 8.3 security updates

Please check the CentOS mailing list for details about CentOS 7/8 updates that entered this release (everything from Jan 18th, 2021 to Mar 20th, 2021).

Update instructions:

The problem can be corrected by updating your system to the following or more recent package versions (follow the Qlustar Update Instructions and 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):

For Qlustar 12.0

    linux-image-ql-generic                     5.4.104-ql-generic-12.0-7
    qlustar-module-core-focal-amd64-12.0.0     12.0.0.2-b531f1351
    qlustar-module-core-centos7-amd64-12.0.0   12.0.0.2-b531f1351
    qlustar-module-core-centos8-amd64-12.0.0   12.0.0.2-b531f1351
  

For Qlustar 11.0

    linux-image-ql-generic                     4.19.179-ql-generic-11.0-22
    qlustar-module-core-bionic-amd64-11.0.1    11.0.1.6-b533f1350
    qlustar-module-core-centos7-amd64-11.0.1   11.0.1.6-b533f1350
    qlustar-module-core-centos8-amd64-11.0.1   11.0.1.6-b533f1350
  
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