Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Systemd Project | Systemd | <= 244 |
| Redhat | Ceph Storage | 4.0 |
| Redhat | Discovery | - |
| Redhat | Migration Toolkit | 1.0 |
| Redhat | Openshift Container Platform | 4.0 |
| Redhat | Enterprise Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712Issue TrackingPatchThird Party Advisory
- https://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89edPatchThird Party Advisory
- https://github.com/systemd/systemd/commit/637486261528e8aa3da9f26a4487dc254f4b7aPatchThird Party Advisory
- https://github.com/systemd/systemd/commit/bc130b6858327b382b07b3985cf48e2aa9016bPatchThird Party Advisory
- https://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/06/msg00025.htmlMailing ListThird Party Advisory
- https://www.openwall.com/lists/oss-security/2020/02/05/1Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712Issue TrackingPatchThird Party Advisory
- https://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89edPatchThird Party Advisory
- https://github.com/systemd/systemd/commit/637486261528e8aa3da9f26a4487dc254f4b7aPatchThird Party Advisory
- https://github.com/systemd/systemd/commit/bc130b6858327b382b07b3985cf48e2aa9016bPatchThird Party Advisory
- https://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/06/msg00025.htmlMailing ListThird Party Advisory
- https://www.openwall.com/lists/oss-security/2020/02/05/1Mailing ListPatchThird Party Advisory
FAQ
What is CVE-2020-1712?
CVE-2020-1712 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 ...
How severe is CVE-2020-1712?
CVE-2020-1712 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-1712?
Check the references section above for vendor advisories and patch information. Affected products include: Systemd Project Systemd, Redhat Ceph Storage, Redhat Discovery, Redhat Migration Toolkit, Redhat Openshift Container Platform.