python-cryptography: GCM tag forgery via truncated tag in finalize_with_tag API

A flaw was found in python-cryptography versions between >=1.9.0 and <2.3. The finalize_with_tag API did not enforce a minimum tag length. If a user did not validate the input length prior to passing it to finalize_with_tag an attacker could craft an invalid payload with a shortened tag (e.g. 1 byte) such that they would have a 1 in 256 chance of passing the MAC check. GCM tag forgeries can cause key leakage.

kernel: MIDI driver race condition leads to a double-free

It was found that the raw midi kernel driver does not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation.

kernel: kvm: vmx: host GDT limit corruption

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cpu variables. An attacker can use this to escalate their privileges.

Network Manager VPNC plugin (aka networkmanager-vpnc) before version 1.2.6 is vulnerable to a privilege escalation attack. A new line character can be used to inject a Password helper parameter into the configuration data passed to VPNC, allowing an attacker to execute arbitrary commands as root.

jolokia: system-wide CSRF that could lead to Remote Code Execution

A flaw was found in Jolokia versions from 1.2 to before 1.6.1. Affected versions are vulnerable to a system-wide CSRF. This holds true for properly configured instances with strict checking for origin and referrer headers. This could result in a Remote Code Execution attack.

openstack-tripleo-heat-templates: Default ODL deployment uses hard coded administrative credentials

A vulnerability was found in openstack-tripleo-heat-templates before version 8.0.2-40. When deployed using Director using default configuration, Opendaylight in RHOSP13 is configured with easily guessable default credentials.

yum-utils: reposync: improper path validation may lead to directory traversal

A directory traversal issue was found in reposync, a part of yum-utils, where reposync fails to sanitize paths in remote repository configuration files. If an attacker controls a repository, they may be able to copy files outside of the destination directory on the targeted system via path traversal. If reposync is running with heightened privileges on a targeted system, this flaw could potentially result in system compromise via the overwriting of critical system files. Version 1.1.31 and older are believed to be affected.

cloud-init: default configuration disabled deletion of SSH host keys

The default cloud-init configuration, in cloud-init 0.6.2 and newer, included "ssh_deletekeys: 0", disabling cloud-init's deletion of ssh host keys. In some environments, this could lead to instances created by cloning a golden master or template system, sharing ssh host keys, and being able to impersonate one another or conduct man-in-the-middle attacks.

qutebrowser before version 1.4.1 is vulnerable to a cross-site request forgery flaw that allows websites to access 'qute://*' URLs. A malicious website could exploit this to load a 'qute://settings/set' URL, which then sets 'editor.command' to a bash script, resulting in arbitrary code execution.

keycloak: auth permitted with expired certs in SAML client

It was found that SAML authentication in Keycloak 3.4.3.Final incorrectly authenticated expired certificates. A malicious user could use this to access unauthorized data or possibly conduct further attacks.

spice-client: Insufficient encoding checks for LZ can cause different integer/buffer overflows

Multiple integer overflow and buffer overflow issues were discovered in spice-client's handling of LZ compressed frames. A malicious server could cause the client to crash or, potentially, execute arbitrary code.

docker: container breakout without selinux in enforcing mode

The default OCI linux spec in oci/defaults{_linux}.go in Docker/Moby from 1.11 to current does not block /proc/acpi pathnames. The flaw allows an attacker to modify host's hardware like enabling/disabling bluetooth or turning up/down keyboard brightness.

A flaw was found in moodle before versions 3.5.1, 3.4.4, 3.3.7, 3.1.13. When a quiz question bank is imported, it was possible for the question preview that is displayed to execute JavaScript that is written into the question bank.

A flaw was found in moodle before versions 3.5.1, 3.4.4, 3.3.7, 3.1.13. It was possible for the core_course_get_categories web service to return hidden categories, which should be omitted when fetching course categories.

A flaw was found in moodle before versions 3.5.1, 3.4.4, 3.3.7. No option existed to omit logs from data privacy exports, which may contain details of other users who interacted with the requester.

A flaw was found in libgit2 before version 0.27.3. A missing check in git_delta_apply function in delta.c file, may lead to an out-of-bound read while reading a binary delta file. An attacker may use this flaw to cause a Denial of Service.

A flaw was found in libgit2 before version 0.27.3. It has been discovered that an unexpected sign extension in git_delta_apply function in delta.c file may lead to an integer overflow which in turn leads to an out of bound read, allowing to read before the base object. An attacker may use this flaw to leak memory addresses or cause a Denial of Service.

atomic-openshift: Malicious network-policy can cause Openshift Routing DoS when using ovs-networkpolicy plugin

In atomic-openshift before version 3.10.9 a malicious network-policy configuration can cause Openshift Routing to crash when using ovs-networkpolicy plugin. An attacker can use this flaw to cause a Denial of Service (DoS) attack on an Openshift 3.9, or 3.7 Cluster.

ansible-tower: CSRF in awx/api/authentication.py allows for hijacking of the authtoken cookie

Ansible Tower before versions 3.1.8 and 3.2.6 is vulnerable to cross-site request forgery (CSRF) in awx/api/authentication.py. An attacker could exploit this by tricking already authenticated users into visiting a malicious site and hijacking the authtoken cookie.

kernel: stack-out-of-bounds write in jbd2_journal_dirty_metadata function

A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bounds write in jbd2_journal_dirty_metadata(), a denial of service, and a system crash by mounting and operating on a crafted ext4 filesystem image.