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CVE-2019-12749

Status Candidate

Overview

dbus before 1.10.28, 1.12.x before 1.12.16, and 1.13.x before 1.13.12, as used in DBusServer in Canonical Upstart in Ubuntu 14.04 (and in some, less common, uses of dbus-daemon), allows cookie spoofing because of symlink mishandling in the reference implementation of DBUS_COOKIE_SHA1 in the libdbus library. (This only affects the DBUS_COOKIE_SHA1 authentication mechanism.) A malicious client with write access to its own home directory could manipulate a ~/.dbus-keyrings symlink to cause a DBusServer with a different uid to read and write in unintended locations. In the worst case, this could result in the DBusServer reusing a cookie that is known to the malicious client, and treating that cookie as evidence that a subsequent client connection came from an attacker-chosen uid, allowing authentication bypass.

Related Files

Red Hat Security Advisory 2021-1079-01
Posted Apr 9, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1079-01 - Red Hat Ansible Automation Platform Resource Operator container images with security fixes. Ansible Automation Platform manages Ansible Platform jobs and workflows that can interface with any infrastructure on a Red Hat OpenShift Container Platform cluster, or on a traditional infrastructure that is running off-cluster. Data exposure issues have been addressed.

tags | advisory
systems | linux, redhat
advisories | CVE-2017-12652, CVE-2018-20843, CVE-2019-11719, CVE-2019-11727, CVE-2019-11756, CVE-2019-12749, CVE-2019-14866, CVE-2019-14973, CVE-2019-15903, CVE-2019-17006, CVE-2019-17023, CVE-2019-17498, CVE-2019-17546, CVE-2019-19956, CVE-2019-20388, CVE-2019-20907, CVE-2019-5094, CVE-2019-5188, CVE-2020-12243, CVE-2020-12400, CVE-2020-12401, CVE-2020-12402, CVE-2020-12403, CVE-2020-14422, CVE-2020-15999, CVE-2020-1971, CVE-2020-5313
MD5 | 6b25e7f5601acf3c1a2f2dbe746ecedc
Red Hat Security Advisory 2021-1129-01
Posted Apr 8, 2021
Authored by Red Hat | Site access.redhat.com

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tags | advisory
systems | linux, redhat
advisories | CVE-2018-20843, CVE-2019-11719, CVE-2019-11727, CVE-2019-11756, CVE-2019-12749, CVE-2019-14866, CVE-2019-15903, CVE-2019-17006, CVE-2019-17023, CVE-2019-17498, CVE-2019-19126, CVE-2019-19532, CVE-2019-19956, CVE-2019-20388, CVE-2019-20907, CVE-2019-5094, CVE-2019-5188, CVE-2020-0427, CVE-2020-12243, CVE-2020-12400, CVE-2020-12401, CVE-2020-12402, CVE-2020-12403, CVE-2020-12723, CVE-2020-14040, CVE-2020-14351, CVE-2020-1971
MD5 | 0aac387101bdf7b27b57090a9070a68c
Red Hat Security Advisory 2021-0949-01
Posted Mar 22, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0949-01 - Red Hat OpenShift Do is a simple CLI tool for developers to create, build, and deploy applications on OpenShift. The odo tool is completely client-based and requires no server within the OpenShift cluster for deployment. It detects changes to local code and deploys it to the cluster automatically, giving instant feedback to validate changes in real-time. It supports multiple programming languages and frameworks. Red Hat OpenShift Do openshift/odo-init-image 1.1.3 is a container image that is used as part of the InitContainer setup that provisions odo components.

tags | advisory, local
systems | linux, redhat
advisories | CVE-2018-20843, CVE-2019-11719, CVE-2019-11727, CVE-2019-11756, CVE-2019-12749, CVE-2019-14866, CVE-2019-15903, CVE-2019-17006, CVE-2019-17023, CVE-2019-17498, CVE-2019-19956, CVE-2019-20388, CVE-2019-20907, CVE-2019-5094, CVE-2019-5188, CVE-2020-12243, CVE-2020-12400, CVE-2020-12401, CVE-2020-12402, CVE-2020-12403, CVE-2020-1971, CVE-2020-6829, CVE-2020-7595, CVE-2020-8177
MD5 | 5d9bb5ed3d28f53dd20a3130fa28953c
Red Hat Security Advisory 2021-0778-01
Posted Mar 9, 2021
Authored by Red Hat | Site access.redhat.com

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tags | advisory, web, vulnerability, code execution, xss
systems | linux, redhat
advisories | CVE-2016-5766, CVE-2018-20843, CVE-2019-11719, CVE-2019-11727, CVE-2019-11756, CVE-2019-12749, CVE-2019-14866, CVE-2019-15903, CVE-2019-17006, CVE-2019-17023, CVE-2019-17498, CVE-2019-19956, CVE-2019-20372, CVE-2019-20388, CVE-2019-20907, CVE-2020-10543, CVE-2020-10878, CVE-2020-11022, CVE-2020-11023, CVE-2020-12243, CVE-2020-12400, CVE-2020-12401, CVE-2020-12402, CVE-2020-12403, CVE-2020-12723, CVE-2020-1971
MD5 | 198f85a6d096aab12ca29885a346b930
Red Hat Security Advisory 2020-4264-01
Posted Oct 21, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4264-01 - 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-2017-12652, CVE-2017-18190, CVE-2018-20843, CVE-2019-11068, CVE-2019-11719, CVE-2019-11727, CVE-2019-11756, CVE-2019-12450, CVE-2019-12749, CVE-2019-14822, CVE-2019-14866, CVE-2019-14973, CVE-2019-15903, CVE-2019-16935, CVE-2019-17006, CVE-2019-17023, CVE-2019-17498, CVE-2019-17546, CVE-2019-18197, CVE-2019-19126, CVE-2019-19956, CVE-2019-20386, CVE-2019-20388, CVE-2019-2974, CVE-2019-5094, CVE-2019-5188, CVE-2019-5482
MD5 | 71ada3b5556f039a7b36202dee923f3d
Red Hat Security Advisory 2020-4255-01
Posted Oct 14, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4255-01 - Updated python-psutil version to 5.6.6 inside ansible-runner container. Issues addressed include a double free vulnerability.

tags | advisory, python
systems | linux, redhat
advisories | CVE-2017-12652, CVE-2018-20843, CVE-2019-11719, CVE-2019-11727, CVE-2019-11756, CVE-2019-12450, CVE-2019-12749, CVE-2019-14822, CVE-2019-14866, CVE-2019-14973, CVE-2019-15903, CVE-2019-16935, CVE-2019-17006, CVE-2019-17023, CVE-2019-17498, CVE-2019-17546, CVE-2019-18874, CVE-2019-19126, CVE-2019-19956, CVE-2019-20386, CVE-2019-20388, CVE-2019-5094, CVE-2019-5188, CVE-2019-5482, CVE-2020-12243, CVE-2020-12400, CVE-2020-1240
MD5 | 58f59d6ce0b4b1154f03aa325ad90c26
Red Hat Security Advisory 2020-4254-01
Posted Oct 14, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4254-01 - Updated python-psutil version to 5.6.6 inside ansible-runner container. Issues addressed include a double free vulnerability.

tags | advisory, python
systems | linux, redhat
advisories | CVE-2017-12652, CVE-2018-20843, CVE-2019-11719, CVE-2019-11727, CVE-2019-11756, CVE-2019-12450, CVE-2019-12749, CVE-2019-14822, CVE-2019-14866, CVE-2019-14973, CVE-2019-15903, CVE-2019-16935, CVE-2019-17006, CVE-2019-17023, CVE-2019-17498, CVE-2019-17546, CVE-2019-18874, CVE-2019-19126, CVE-2019-19956, CVE-2019-20386, CVE-2019-20388, CVE-2019-5094, CVE-2019-5188, CVE-2019-5482, CVE-2020-12243, CVE-2020-12400, CVE-2020-1240
MD5 | 4d31403d6728670d6c8a9619f88b115f
Red Hat Security Advisory 2020-4032-01
Posted Sep 30, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4032-01 - D-Bus is a system for sending messages between applications. It is used both for the system-wide message bus service, and as a per-user-login-session messaging facility. Issues addressed include a bypass vulnerability.

tags | advisory, bypass
systems | linux, redhat
advisories | CVE-2019-12749
MD5 | f31f5f81dfdbd30126bd13acb29de12a
Red Hat Security Advisory 2019-3707-01
Posted Nov 6, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-3707-01 - D-Bus is a system for sending messages between applications. It is used both for the system-wide message bus service, and as a per-user-login-session messaging facility. Issues addressed include a bypass vulnerability.

tags | advisory, bypass
systems | linux, redhat
advisories | CVE-2019-12749
MD5 | a8d59b88d39a7ebe5b3678a8fbaf5d02
Red Hat Security Advisory 2019-2868-01
Posted Sep 23, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2868-01 - D-Bus is a system for sending messages between applications. It is used both for the system-wide message bus service, and as a per-user-login-session messaging facility. Issues addressed include a bypass vulnerability.

tags | advisory, bypass
systems | linux, redhat
advisories | CVE-2019-12749
MD5 | c4b963668d758f653d9bbdfea3dc785e
Red Hat Security Advisory 2019-2870-01
Posted Sep 23, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2870-01 - D-Bus is a system for sending messages between applications. It is used both for the system-wide message bus service, and as a per-user-login-session messaging facility. Issues addressed include a bypass vulnerability.

tags | advisory, bypass
systems | linux, redhat
advisories | CVE-2019-12749
MD5 | 1fef64aa032ea64d788c049ea3f22f91
Gentoo Linux Security Advisory 201909-08
Posted Sep 9, 2019
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201909-8 - An authentication bypass was discovered in D-Bus. Versions less than 1.12.16 are affected.

tags | advisory
systems | linux, gentoo
advisories | CVE-2019-12749
MD5 | 920839a7f48b1dab80d4f154539456a6
Red Hat Security Advisory 2019-1726-01
Posted Jul 10, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1726-01 - D-Bus is a system for sending messages between applications. It is used both for the system-wide message bus service, and as a per-user-login-session messaging facility. Issues addressed include a bypass vulnerability.

tags | advisory, bypass
systems | linux, redhat
advisories | CVE-2019-12749
MD5 | 021d83faf4931fa7407ecb518505eb1e
Debian Security Advisory 4462-1
Posted Jun 13, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4462-1 - Joe Vennix discovered an authentication bypass vulnerability in dbus, an asynchronous inter-process communication system. The implementation of the DBUS_COOKIE_SHA1 authentication mechanism was susceptible to a symbolic link attack. A local attacker could take advantage of this flaw to bypass authentication and connect to a DBusServer with elevated privileges.

tags | advisory, local, bypass
systems | linux, debian
advisories | CVE-2019-12749
MD5 | 9816094dce3bede2d44f5d97fcc1650e
Ubuntu Security Notice USN-4015-2
Posted Jun 12, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4015-2 - USN-4015-1 fixed a vulnerability in DBus. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Joe Vennix discovered that DBus incorrectly handled DBUS_COOKIE_SHA1 authentication. A local attacker could possibly use this issue to bypass authentication and connect to DBus servers with elevated privileges. Various other issues were also addressed.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2019-12749
MD5 | 858566474c9d65682eb11736fb49e199
Ubuntu Security Notice USN-4015-1
Posted Jun 11, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4015-1 - Joe Vennix discovered that DBus incorrectly handled DBUS_COOKIE_SHA1 authentication. A local attacker could possibly use this issue to bypass authentication and connect to DBus servers with elevated privileges.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2019-12749
MD5 | a1dc0907e7644ed8277face860754923
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