CVE-2020-12049

Summary

CVECVE-2020-12049
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-06-08 17:15:00 UTC
Updated2023-06-12 07:15:00 UTC
DescriptionAn issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.

Risk And Classification

Problem Types: CWE-404

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 19.10 All All All
Operating System Canonical Ubuntu Linux 20.04 All All All
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 19.10 All All All
Operating System Canonical Ubuntu Linux 20.04 All All All
Application Freedesktop Dbus All All All All
Application Freedesktop Dbus All All All All

References

ReferenceSourceLinkTags
D-Bus: Denial of service (GLSA 202007-46) — Gentoo security GENTOO security.gentoo.org Third Party Advisory
dbus-1.13.16 · Tags · dbus / dbus · GitLab MISC gitlab.freedesktop.org Third Party Advisory
dbus-1.12.18 · Tags · dbus / dbus · GitLab MISC gitlab.freedesktop.org Third Party Advisory
dbus-1.10.30 · Tags · dbus / dbus · GitLab MISC gitlab.freedesktop.org Third Party Advisory
USN-4398-1: DBus vulnerability | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com Third Party Advisory
CVE-2020-12049: File descriptor leak in _dbus_read_socket_with_unix_fds (#294) · Issues · dbus / dbus · GitLab MISC gitlab.freedesktop.org Exploit, Third Party Advisory
USN-4398-2: DBus vulnerability | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com Third Party Advisory
D-Bus File Descriptor Leak Denial Of Service ≈ Packet Storm MISC packetstormsecurity.com
oss-security - CVE-2020-12049: dbus: denial of service via file descriptor leak CONFIRM www.openwall.com Mailing List, Patch, Third Party Advisory
GHSL-2020-057: dbus file descriptor leak (DoS) - CVE-2020-12049 - GitHub Security Lab MISC securitylab.github.com Exploit, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 296071 Oracle Solaris 11.4 Support Repository Update (SRU) 27.82.1 Missing (CPUOCT2020)
  • 354106 Amazon Linux Security Advisory for dbus : ALAS2-2022-1870
  • 375777 F5 BIG-IP Application Security Manager(ASM), Local Traffic Manager(LTM),Access Policy Manager(APM) D-Bus Vulnerability (K16729408)
  • 377017 Alibaba Cloud Linux Security Update for dbus (ALINUX2-SA-2020:0105)
  • 377142 Alibaba Cloud Linux Security Update for dbus (ALINUX3-SA-2022:0097)
  • 500144 Alpine Linux Security Update for dbus
  • 503794 Alpine Linux Security Update for dbus
  • 6140259 AWS Bottlerocket Security Update for dbus (GHSA-v99w-84vx-mgw6)
  • 750870 SUSE Enterprise Linux Security Update for dbus-1 (SUSE-SU-2021:2424-1)
  • 750895 SUSE Enterprise Linux Security Update for dbus-1 (SUSE-SU-2021:2470-1)
  • 750909 SUSE Enterprise Linux Security Update for dbus-1 (SUSE-SU-2021:2590-1)
  • 751004 OpenSUSE Security Update for dbus-1 (openSUSE-SU-2021:2810-1)
  • 751052 OpenSUSE Security Update for dbus-1 (openSUSE-SU-2021:1204-1)
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