Memory leak in dbus - CVE-2020-12049
Published: June 17, 2020
Vulnerability identifier: #VU29105
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-12049
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
dbus
dbus
Software vendor:
Freedesktop.org
Freedesktop.org
Description
The vulnerability allows a local user to perform DoS attack on the target system.
The vulnerability exists due memory leak in libdbus when a message exceeds the per-message file descriptor limit. A local user with access to the D-Bus system bus or another system service's private AF_UNIX socket can make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.
Remediation
Install updates from vendor's website.