high7.8
CVE-2020-1712
A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Systemd Project | Systemd | through 244 |
| Redhat | Ceph Storage | Version 4.0 |
| Redhat | Discovery | All versions |
| Redhat | Migration Toolkit | Version 1.0 |
| Redhat | Openshift Container Platform | Version 4.0 |
| Redhat | Enterprise Linux | Version 8.0 |
| Debian | Debian Linux | Version 9.0 |
Weakness classification
References
- NVD record
- CVE.org record
- 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
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html