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CVE-2019-3842

Status Candidate

Overview

In systemd before v242-rc4, it was discovered that pam_systemd does not properly sanitize the environment before using the XDG_SEAT variable. It is possible for an attacker, in some particular configurations, to set a XDG_SEAT environment variable which allows for commands to be checked against polkit policies using the "allow_active" element rather than "allow_any".

Related Files

Red Hat Security Advisory 2021-4582-02
Posted Nov 10, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4582-02 - Service Telemetry Framework provides automated collection of measurements and data from remote clients, such as Red Hat OpenStack Platform or third-party nodes. STF then transmits the information to a centralized, receiving Red Hat OpenShift Container Platform deployment for storage, retrieval, and monitoring. Security fixes: golang: crypto/tls: certificate of wrong type is causing TLS client to panic.

tags | advisory, remote, crypto
systems | linux, redhat
advisories | CVE-2019-3842, CVE-2020-13776, CVE-2021-22922, CVE-2021-22923, CVE-2021-34558, CVE-2021-3620
MD5 | 60c936fee8b9dec26ceb9f8b14f0ed3c
Red Hat Security Advisory 2021-3900-01
Posted Oct 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3900-01 - The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. Issues addressed include a spoofing vulnerability.

tags | advisory, spoof
systems | linux, redhat
advisories | CVE-2019-3842, CVE-2020-13776
MD5 | 74dad31d86a991e055be30d2d09a6db3
Red Hat Security Advisory 2021-2705-01
Posted Jul 14, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2705-01 - Red Hat OpenShift Serverless 1.16.0 release of the OpenShift Serverless Operator. This version of the OpenShift Serverless Operator is supported on Red Hat OpenShift Container Platform versions 4.6 and 4.7, and includes security and bug fixes and enhancements. For more information, see the documentation listed in the References section. Issues addressed include a memory exhaustion vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2016-10228, CVE-2017-14502, CVE-2019-25013, CVE-2019-2708, CVE-2019-3842, CVE-2019-9169, CVE-2020-13434, CVE-2020-13776, CVE-2020-15358, CVE-2020-24977, CVE-2020-27618, CVE-2020-28196, CVE-2020-29361, CVE-2020-29362, CVE-2020-29363, CVE-2020-8231, CVE-2020-8284, CVE-2020-8285, CVE-2020-8286, CVE-2020-8927, CVE-2021-27219, CVE-2021-27918, CVE-2021-31525, CVE-2021-33196, CVE-2021-3326
MD5 | cf60d4cefd636ea32aced9b71992e9aa
Red Hat Security Advisory 2021-2543-01
Posted Jun 24, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2543-01 - Red Hat OpenShift Jaeger is Red Hat's distribution of the Jaeger project, tailored for installation into an on-premise OpenShift Container Platform installation. Issues addressed include code execution and denial of service vulnerabilities.

tags | advisory, denial of service, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2016-10228, CVE-2017-14502, CVE-2019-25013, CVE-2019-2708, CVE-2019-3842, CVE-2019-9169, CVE-2020-13434, CVE-2020-13776, CVE-2020-13949, CVE-2020-15358, CVE-2020-24977, CVE-2020-26116, CVE-2020-27618, CVE-2020-27619, CVE-2020-28196, CVE-2020-28362, CVE-2020-28500, CVE-2020-29361, CVE-2020-29362, CVE-2020-29363, CVE-2020-8231, CVE-2020-8284, CVE-2020-8285, CVE-2020-8286, CVE-2020-8927, CVE-2021-20305, CVE-2021-23336
MD5 | 999fa032c4df34cdc39fca102e2f2111
Red Hat Security Advisory 2021-2532-01
Posted Jun 23, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2532-01 - Red Hat OpenShift Jaeger is Red Hat's distribution of the Jaeger project, tailored for installation into an on-premise OpenShift Container Platform installation.

tags | advisory
systems | linux, redhat
advisories | CVE-2016-10228, CVE-2017-14502, CVE-2019-25013, CVE-2019-2708, CVE-2019-3842, CVE-2019-9169, CVE-2020-13434, CVE-2020-13776, CVE-2020-15358, CVE-2020-24977, CVE-2020-26116, CVE-2020-27618, CVE-2020-27619, CVE-2020-28196, CVE-2020-28362, CVE-2020-29361, CVE-2020-29362, CVE-2020-29363, CVE-2020-8231, CVE-2020-8284, CVE-2020-8285, CVE-2020-8286, CVE-2020-8927, CVE-2021-20305, CVE-2021-23336, CVE-2021-27219, CVE-2021-3114
MD5 | 66a51cff0ef120e7619f58316d2306b6
Red Hat Security Advisory 2021-2130-01
Posted Jun 23, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2130-01 - Windows Container Support for Red Hat OpenShift allows you to deploy Windows container workloads running on Windows Server containers. Issues addressed include a man-in-the-middle vulnerability.

tags | advisory
systems | linux, redhat, windows
advisories | CVE-2016-10228, CVE-2017-14502, CVE-2019-25013, CVE-2019-2708, CVE-2019-3842, CVE-2019-9169, CVE-2020-13434, CVE-2020-13776, CVE-2020-15358, CVE-2020-24977, CVE-2020-27618, CVE-2020-28196, CVE-2020-29361, CVE-2020-29362, CVE-2020-29363, CVE-2020-8231, CVE-2020-8284, CVE-2020-8285, CVE-2020-8286, CVE-2020-8927, CVE-2021-20305, CVE-2021-25736, CVE-2021-27219, CVE-2021-3326, CVE-2021-3449, CVE-2021-3450
MD5 | fd9348f3bd9855d4db87c8b6ac37d8a0
Red Hat Security Advisory 2021-2479-01
Posted Jun 17, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2479-01 - Red Hat OpenShift Container Storage is software-defined storage integrated with and optimized for the Red Hat OpenShift Container Platform. Red Hat OpenShift Container Storage is a highly scalable, production-grade persistent storage for stateful applications running in the Red Hat OpenShift Container Platform. Issues addressed include a cross site scripting vulnerability.

tags | advisory, xss
systems | linux, redhat
advisories | CVE-2016-10228, CVE-2017-14502, CVE-2019-13012, CVE-2019-14866, CVE-2019-25013, CVE-2019-2708, CVE-2019-3842, CVE-2019-9169, CVE-2020-13434, CVE-2020-13543, CVE-2020-13584, CVE-2020-13776, CVE-2020-15358, CVE-2020-24977, CVE-2020-25659, CVE-2020-25678, CVE-2020-26116, CVE-2020-26137, CVE-2020-27618, CVE-2020-27619, CVE-2020-27783, CVE-2020-28196, CVE-2020-29361, CVE-2020-29362, CVE-2020-29363, CVE-2020-36242, CVE-2020-8231
MD5 | ab1ddf71e1b9a05b6be7d4ee52a51220
Red Hat Security Advisory 2021-2461-01
Posted Jun 17, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2461-01 - Red Hat Advanced Cluster Management for Kubernetes 2.2.4 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs and security issues. Issues addressed include denial of service and integer overflow vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2016-10228, CVE-2017-14502, CVE-2019-14866, CVE-2019-25013, CVE-2019-25032, CVE-2019-25034, CVE-2019-25035, CVE-2019-25036, CVE-2019-25037, CVE-2019-25038, CVE-2019-25039, CVE-2019-25040, CVE-2019-25041, CVE-2019-25042, CVE-2019-2708, CVE-2019-3842, CVE-2019-9169, CVE-2020-10543, CVE-2020-10878, CVE-2020-12362, CVE-2020-12363, CVE-2020-12364, CVE-2020-13434, CVE-2020-13776, CVE-2020-15358, CVE-2020-24330, CVE-2020-2433
MD5 | 9522e188d5bfa8cd805fe9b2110ffa29
Red Hat Security Advisory 2021-2121-01
Posted Jun 1, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2121-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments.

tags | advisory
systems | linux, redhat
advisories | CVE-2016-10228, CVE-2019-13012, CVE-2019-14866, CVE-2019-18811, CVE-2019-19523, CVE-2019-19528, CVE-2019-25013, CVE-2019-25032, CVE-2019-25034, CVE-2019-25035, CVE-2019-25036, CVE-2019-25037, CVE-2019-25038, CVE-2019-25039, CVE-2019-25040, CVE-2019-25041, CVE-2019-25042, CVE-2019-2708, CVE-2019-3842, CVE-2019-9169, CVE-2020-0431, CVE-2020-10543, CVE-2020-10878, CVE-2020-11608, CVE-2020-12114, CVE-2020-12362, CVE-2020-12464
MD5 | 20ac09df5050903638134c3d445a9857
Red Hat Security Advisory 2021-2136-01
Posted May 27, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2136-01 - An Openshift Logging bug fix release addresses an index validation issue.

tags | advisory
systems | linux, redhat
advisories | CVE-2016-10228, CVE-2019-13012, CVE-2019-18811, CVE-2019-19523, CVE-2019-19528, CVE-2019-25013, CVE-2019-2708, CVE-2019-3842, CVE-2019-9169, CVE-2020-0431, CVE-2020-10543, CVE-2020-10878, CVE-2020-11608, CVE-2020-12114, CVE-2020-12362, CVE-2020-12464, CVE-2020-13434, CVE-2020-13543, CVE-2020-13584, CVE-2020-13776, CVE-2020-14314, CVE-2020-14344, CVE-2020-14345, CVE-2020-14346, CVE-2020-14347, CVE-2020-14356, CVE-2020-14360
MD5 | f8b368d2ff22aab14d375e3009b81cdd
Red Hat Security Advisory 2021-1611-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1611-01 - The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. Issues addressed include a spoofing vulnerability.

tags | advisory, spoof
systems | linux, redhat
advisories | CVE-2019-3842, CVE-2020-13776
MD5 | 230c271bc5dfa3d7bbb294436ec2c85c
systemd Seat Verification Active Session Spoofing
Posted Apr 23, 2019
Authored by Jann Horn, Google Security Research

systemd suffers from a lack of seat verification in the PAM module and in turn permits the spoofing of an active session to polkit.

tags | exploit, spoof
advisories | CVE-2019-3842
MD5 | da7d4cd8a891ee21f0b9d4c6fec61329
Debian Security Advisory 4428-1
Posted Apr 9, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4428-1 - Jann Horn discovered that the PAM module in systemd insecurely uses the environment and lacks seat verification permitting spoofing an active session to PolicyKit. A remote attacker with SSH access can take advantage of this issue to gain PolicyKit privileges that are normally only granted to clients in an active session on the local console.

tags | advisory, remote, local, spoof
systems | linux, debian
advisories | CVE-2019-3842
MD5 | 581ff7de6fc4c8317db5062a9bb2215a
Ubuntu Security Notice USN-3938-1
Posted Apr 9, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3938-1 - Jann Horn discovered that pam_systemd created logind sessions using some parameters from the environment. A local attacker could exploit this in order to spoof the active session and gain additional PolicyKit privileges.

tags | advisory, local, spoof
systems | linux, ubuntu
advisories | CVE-2019-3842
MD5 | 1ea66e9f11b68b91474bff6257eec73d
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