CVE-2020-1712
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.5%
exploitation probability
0.5%top 61% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
[UNKNOWN] · systemdReferences
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712https://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89ed54https://github.com/systemd/systemd/commit/637486261528e8aa3da9f26a4487dc254f4b7abbhttps://github.com/systemd/systemd/commit/bc130b6858327b382b07b3985cf48e2aa9016b2dhttps://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccc2https://lists.debian.org/debian-lts-announce/2022/06/msg00025.htmlhttps://www.openwall.com/lists/oss-security/2020/02/05/1