Use After Free Affecting systemd-libs package, versions <0:239-18.0.2.el8_1.4
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-ORACLE8-SYSTEMDLIBS-2549115
- published 10 Apr 2022
- disclosed 31 Mar 2020
Introduced: 31 Mar 2020
CVE-2020-1712 Open this link in a new tabHow to fix?
Upgrade Oracle:8 systemd-libs to version 0:239-18.0.2.el8_1.4 or higher.
This issue was patched in ELSA-2020-0575.
NVD Description
Note: Versions mentioned in the description apply only to the upstream systemd-libs package and not the systemd-libs package as distributed by Oracle.
See How to fix? for Oracle:8 relevant fixed versions and status.
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.
References
- https://linux.oracle.com/cve/CVE-2020-1712.html
- https://linux.oracle.com/errata/ELSA-2020-0575.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712
- https://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89ed54
- https://github.com/systemd/systemd/commit/637486261528e8aa3da9f26a4487dc254f4b7abb
- https://github.com/systemd/systemd/commit/bc130b6858327b382b07b3985cf48e2aa9016b2d
- https://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccc2
- https://lists.debian.org/debian-lts-announce/2022/06/msg00025.html
- https://www.openwall.com/lists/oss-security/2020/02/05/1