CVE-2020-12049
MEDIUM 5.5EPSS 0.6%
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.
- CVSS v3.1 NVD
- 5.5 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS v2.0 NVD
- 4.9 MEDIUM
AV:L/AC:L/Au:N/C:N/I:N/A:C - EPSS
- 0.57% chance of exploitation in the next 30 days, 46th percentile
- Published
- 2020-06-08
- Updated
- 2024-08-04
Proof-of-concept exploits (2)
- https://gitlab.freedesktop.org/dbus/dbus/-/issues/294
- https://securitylab.github.com/advisories/GHSL-2020-057-DBus-DoS-file-descriptor-leak
Exploit collections (1)
- freedesktop/DBus-CVE-2020-12049github/securitylab
Security advisories
- http://www.openwall.com/lists/oss-security/2020/06/04/3
- https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.10.30
- https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.12.18
- https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16
- https://security.gentoo.org/glsa/202007-46
- https://usn.ubuntu.com/4398-1
- https://usn.ubuntu.com/4398-2