CVE-2020-1712

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Summary

CVECVE-2020-1712
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-03-31 17:15:00 UTC
Updated2023-11-07 03:19:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: CWE-416

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Application Freedesktop Systemd All All All All
Application Redhat Ceph Storage 4.0 All All All
Application Redhat Ceph Storage 4.0 All All All
Application Redhat Discovery - All All All
Application Redhat Discovery - All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Application Redhat Migration Toolkit 1.0 All All All
Application Redhat Migration Toolkit 1.0 All All All
Application Redhat Openshift Container Platform 4.0 All All All
Application Redhat Openshift Container Platform 4.0 All All All
Application Systemd Project Systemd All All All All

References

ReferenceSourceLinkTags
[SECURITY] [DLA 3063-1] systemd security update MLIST lists.debian.org
polkit: when authorizing via PK let's re-resolve callback/userdata in… · systemd/systemd@6374862 · GitHub CONFIRM github.com Patch, Third Party Advisory
Merge branch 'polkit-ref-count' · systemd/systemd@ea0d0ed · GitHub CONFIRM github.com Patch, Third Party Advisory
1794578 – (CVE-2020-1712) CVE-2020-1712 systemd: use-after-free when asynchronous polkit queries are performed CONFIRM bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
Fix typo in function name · systemd/systemd@bc130b6 · GitHub CONFIRM github.com Patch, Third Party Advisory
sd-bus: introduce API for re-enqueuing incoming messages · systemd/systemd@1068447 · GitHub CONFIRM github.com Patch, Third Party Advisory
oss-security - CVE-2020-1712 systemd: use-after-free when asynchronous polkit queries are performed CONFIRM www.openwall.com Mailing List, Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 180179 Debian Security Update for systemd (DLA 3063-1)
  • 377123 Alibaba Cloud Linux Security Update for systemd (ALINUX3-SA-2022:0039)
  • 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
  • 900080 CBL-Mariner Linux Security Update for systemd 239
  • 903171 Common Base Linux Mariner (CBL-Mariner) Security Update for systemd (1789)
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