SUSE update for dbus-1

Published: 2021-07-21

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2020-12049 CVE-2020-35512
CWE-ID	CWE-401 CWE-416
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Software Development Kit Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system libdbus-1-3-debuginfo-32bit Operating systems & Components / Operating system package or component libdbus-1-3-32bit Operating systems & Components / Operating system package or component libdbus-1-3-debuginfo Operating systems & Components / Operating system package or component libdbus-1-3 Operating systems & Components / Operating system package or component dbus-1-x11-debugsource Operating systems & Components / Operating system package or component dbus-1-x11-debuginfo Operating systems & Components / Operating system package or component dbus-1-x11 Operating systems & Components / Operating system package or component dbus-1-debuginfo Operating systems & Components / Operating system package or component dbus-1 Operating systems & Components / Operating system package or component dbus-1-devel-doc Operating systems & Components / Operating system package or component dbus-1-devel Operating systems & Components / Operating system package or component dbus-1-debugsource Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Memory leak

EUVDB-ID: #VU29105

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-12049

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

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.

Mitigation

Update the affected package dbus-1 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

libdbus-1-3-debuginfo-32bit: before 1.8.22-35.2

libdbus-1-3-32bit: before 1.8.22-35.2

libdbus-1-3-debuginfo: before 1.8.22-35.2

libdbus-1-3: before 1.8.22-35.2

dbus-1-x11-debugsource: before 1.8.22-35.2

dbus-1-x11-debuginfo: before 1.8.22-35.2

dbus-1-x11: before 1.8.22-35.2

dbus-1-debuginfo: before 1.8.22-35.2

dbus-1: before 1.8.22-35.2

dbus-1-devel-doc: before 1.8.22-35.2

dbus-1-devel: before 1.8.22-35.2

dbus-1-debugsource: before 1.8.22-35.2

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20212424-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Use-after-free

EUVDB-ID: #VU62883