Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU67416
Risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3782
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error caused by incorrectly handled reference counting
certain objects. A local user can perform a denial of service (DoS) attack against the Wayland compositor or execute arbitrary code with elevated privileges.
Update the affected package wayland to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Micro for Rancher: 5.2
SUSE Linux Enterprise Server for SAP Applications 15: SP2 - SP3
SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3
SUSE Linux Enterprise Server 15: SP2 - SP3
SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2
SUSE Linux Enterprise Real Time 15: SP3
SUSE Linux Enterprise High Performance Computing LTSS 15: SP3
SUSE Linux Enterprise High Performance Computing ESPOS 15: SP3
SUSE Linux Enterprise High Performance Computing 15: SP2 - SP3
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2
SUSE Enterprise Storage: 7.1
SUSE Manager Retail Branch Server: 4.2
SUSE Linux Enterprise Micro: 5.2
SUSE Manager Server: 4.2
SUSE Manager Proxy: 4.2
libwayland-server0-32bit: before 1.18.0-150200.3.3.1
libwayland-server0-32bit-debuginfo: before 1.18.0-150200.3.3.1
libwayland-client0-32bit: before 1.18.0-150200.3.3.1
libwayland-client0-32bit-debuginfo: before 1.18.0-150200.3.3.1
libwayland-cursor0-debuginfo: before 1.18.0-150200.3.3.1
libwayland-egl1-debuginfo: before 99~1.18.0-150200.3.3.1
libwayland-server0-debuginfo: before 1.18.0-150200.3.3.1
wayland-debugsource: before 1.18.0-150200.3.3.1
libwayland-client0-debuginfo: before 1.18.0-150200.3.3.1
wayland-devel-debuginfo: before 1.18.0-150200.3.3.1
libwayland-client0: before 1.18.0-150200.3.3.1
wayland-devel: before 1.18.0-150200.3.3.1
libwayland-server0: before 1.18.0-150200.3.3.1
libwayland-egl1: before 99~1.18.0-150200.3.3.1
libwayland-cursor0: before 1.18.0-150200.3.3.1
External linkshttp://www.suse.com/support/update/announcement/2023/suse-su-20231873-1/
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.