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CVE-2020-1712

Status Candidate

Overview

A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.

Related Files

Red Hat Security Advisory 2020-1475-01
Posted Apr 15, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1475-01 - Red Hat CodeReady Workspaces 2.1.0 provides a cloud developer-workspace server and a browser-based IDE built for teams and organizations. CodeReady Workspaces runs in OpenShift and is well-suited for container-based development. Issues addressed include a bypass vulnerability.

tags | advisory, bypass
systems | linux, redhat
advisories | CVE-2019-1348, CVE-2019-1349, CVE-2019-1352, CVE-2019-13734, CVE-2019-1387, CVE-2019-15030, CVE-2019-15031, CVE-2019-18397, CVE-2019-18408, CVE-2019-18660, CVE-2019-19527, CVE-2020-10531, CVE-2020-10689, CVE-2020-1712
SHA-256 | b5c8f10137e8c8827b0c0c84598a3473b41756f99fb1840845586af722d09d16
Gentoo Linux Security Advisory 202003-20
Posted Mar 15, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202003-20 - A heap use-after-free flaw in systemd at worst might allow an attacker to execute arbitrary code. Versions less than 244.3 are affected.

tags | advisory, arbitrary
systems | linux, gentoo
advisories | CVE-2020-1712
SHA-256 | 62bc7808fc045cbe8527c6f69c0d0cfaf3c9d89317c79e83efc698db291ed2fa
Red Hat Security Advisory 2020-0575-01
Posted Feb 25, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0575-01 - 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 use-after-free vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-1712
SHA-256 | 3240271f356f5c6aa03af49501fffe947291b42228ba1ab6cc14b1d732c9f741
Red Hat Security Advisory 2020-0564-01
Posted Feb 21, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0564-01 - 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 use-after-free vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-1712
SHA-256 | 666ecdb2f28f993bc3f9d569555f489bcb6f7c49fb7116e800eeed1b773320f5
Ubuntu Security Notice USN-4269-1
Posted Feb 5, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4269-1 - 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. This issue only affected Ubuntu 16.04 LTS. 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. Various other issues were also addressed.

tags | advisory, denial of service, local
systems | linux, ubuntu
advisories | CVE-2018-16888, CVE-2019-20386, CVE-2020-1712
SHA-256 | 801a330186d2d0b57ba060621d63e9763e16344004da69650cf8fc1454009020
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