[QSA-0210202]
Security Update Bundle
Qlustar Security Advisory 0210202
Feb 10th, 2020
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 : 10.1, 11.0
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 only to Qlustar 11.0
MariaDB vulnerability
It was discovered that an unspecified vulnerability existed in the C API component of MariaDB. An attacker could use this to cause a denial of service for MariaDB clients.
MariaDB has been updated to 10.1.44. In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes.
Relevant to Qlustar 11.0 and 10.1
libxml2 vulnerabilities
It was discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to cause a denial of service.
systemd vulnerabilities
It was discovered that systemd incorrectly handled certain PIDFile files. A local attacker could possibly use this issue to trick systemd into killing privileged processes.
It was discovered that systemd incorrectly handled certain udevadm trigger commands. A local attacker could possibly use this issue to cause systemd to consume resources, leading to a denial of service.
Jann Horn discovered that systemd incorrectly handled services that use the DynamicUser property. A local attacker could possibly use this issue to access resources owned by a different service in the future.
Tavis Ormandy discovered that systemd incorrectly handled certain Polkit queries. A local attacker could use this issue to cause systemd to crash, resulting in a denial of service, or possibly execute arbitrary code and escalate privileges.
Sudo vulnerability
Joe Vennix discovered that Sudo incorrectly handled memory operations when the pwfeedback option is enabled. A local attacker could possibly use this issue to obtain unintended access to the administrator account.
tcpdump vulnerabilities
Multiple security issues were discovered in tcpdump. A remote attacker could use these issues to cause tcpdump to crash, resulting in a denial of service, or possibly execute arbitrary code.
e2fsprogs vulnerability
It was discovered that e2fsprogs incorrectly handled certain ext4 partitions. An attacker could possibly use this issue to execute arbitrary code.
Samba vulnerabilities
It was discovered that Samba did not automatically replicate ACLs set to inherit down a subtree on AD Directory, contrary to expectations.
Robert Święcki discovered that Samba incorrectly handled certain character conversions when the log level is set to 3 or above. In certain environments, a remote attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service.
PHP vulnerabilities
It was discovered that PHP incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service.
It was discovered that PHP incorrectly handled certain inputs. An attacker could possibly use this issue to expose sensitive information.
It was discovered that PHP incorrectly handled certain images. An attacker could possibly use this issue to access sensitive information.
Libgcrypt vulnerability
It was discovered that Libgcrypt was susceptible to a ECDSA timing attack. An attacker could possibly use this attack to recover sensitive information.
CentOS 7.7 security updates
Please check the CentOS mailing list for details about CentOS 7 updates that entered this release (everything from Dec 26th, 2019 to Feb 6th, 2020).
Update instructions:
The problem can be corrected by updating your system to the following Qlustar package versions in addition to the package versions mentioned in the upstream reports (follow the Qlustar Update Instructions and on Qlustar 11 also perform the manual step '10. Adjust root bash shell initialization' as described in the Release Notes if you haven't done so yet):
For Qlustar 11.0
qlustar-module-core-bionic-amd64-11.0.0 11.0.0.7-b515f1280
qlustar-module-core-centos7-amd64-11.0.0 11.0.0.7-b515f1280
For Qlustar 10.1
qlustar-module-core-xenial-amd64-10.1.1 10.1.1.11-b509f1279