Medium severity5.5NVD Advisory· Published Jun 8, 2020· Updated Jun 17, 2026
CVE-2020-12049
CVE-2020-12049
Description
An 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
55cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- dbus/dbusdescription
- Range: >=1.3.0 <1.12.18
- osv-coords44 versionspkg:rpm/opensuse/dbus-1&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/dbus-1&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/dbus-1&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/dbus-1-x11&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/dbus-1-x11&distro=openSUSE%20Leap%2015.3pkg:rpm/suse/dbus-1&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20Micro%205.0pkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/dbus-1&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/dbus-1&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/dbus-1&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/dbus-1&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/dbus-1&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/dbus-1-x11&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/dbus-1-x11&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/dbus-1-x11&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/dbus-1-x11&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/dbus-1-x11&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/dbus-1-x11&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 1.12.2-lp152.6.6.1+ 43 more
- (no CPE)range: < 1.12.2-lp152.6.6.1
- (no CPE)range: < 1.12.2-8.11.2
- (no CPE)range: < 1.12.20-5.5
- (no CPE)range: < 1.12.2-lp152.6.6.1
- (no CPE)range: < 1.12.2-8.11.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.12.2-3.16.1
- (no CPE)range: < 1.12.2-3.16.1
- (no CPE)range: < 1.12.2-8.11.2
- (no CPE)range: < 1.12.2-8.11.2
- (no CPE)range: < 1.12.2-8.11.2
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-35.2
- (no CPE)range: < 1.12.2-3.16.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-35.2
- (no CPE)range: < 1.12.2-3.16.1
- (no CPE)range: < 1.8.22-35.2
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.12.2-3.16.1
- (no CPE)range: < 1.12.2-3.16.1
- (no CPE)range: < 1.12.2-8.11.1
- (no CPE)range: < 1.12.2-8.11.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-35.2
- (no CPE)range: < 1.12.2-3.16.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-35.2
- (no CPE)range: < 1.12.2-3.16.1
- (no CPE)range: < 1.8.22-35.2
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-29.21.1
- (no CPE)range: < 1.8.22-29.21.1
Patches
Vulnerability mechanics
References
10- www.openwall.com/lists/oss-security/2020/06/04/3nvdMailing ListPatchThird Party Advisory
- gitlab.freedesktop.org/dbus/dbus/-/issues/294nvdExploitThird Party Advisory
- securitylab.github.com/advisories/GHSL-2020-057-DBus-DoS-file-descriptor-leaknvdExploitThird Party Advisory
- gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.10.30nvdThird Party Advisory
- gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.12.18nvdThird Party Advisory
- gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16nvdThird Party Advisory
- security.gentoo.org/glsa/202007-46nvdThird Party Advisory
- usn.ubuntu.com/4398-1/nvdThird Party Advisory
- usn.ubuntu.com/4398-2/nvdThird Party Advisory
- packetstormsecurity.com/files/172840/D-Bus-File-Descriptor-Leak-Denial-Of-Service.htmlnvd
News mentions
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