Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU64067
Risk: Low
CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-28737
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
Description The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to a boundary error in the handle_image() function when shim tries to load and execute crafted EFI executables. A local privileged user can trigger an out-of-bounds write error and bypass secure boot protection mechanism.
MitigationUpdate the affected package shim to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Micro for Rancher: 5.2 - 5.4
SUSE Linux Enterprise Micro: 5.1 - 5.4
SUSE Linux Enterprise Server for SAP Applications 15: SP3 - SP4
SUSE Linux Enterprise Server 15: SP3 - SP4
SUSE Linux Enterprise Server 15 SP3 LTSS: 15-SP3
SUSE Linux Enterprise Real Time 15: SP3 - SP4
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: SP3 - SP4
SUSE Linux Enterprise Desktop 15: SP4
Basesystem Module: 15-SP4
openSUSE Leap Micro: 5.3
SUSE Enterprise Storage: 7.1
SUSE Manager Retail Branch Server: 4.2 - 4.3
SUSE Manager Server: 4.2 - 4.3
SUSE Manager Proxy: 4.2 - 4.3
openSUSE Leap: 15.4
shim: before 15.7-150300.4.11.1
shim-debuginfo: before 15.7-150300.4.11.1
shim-debugsource: before 15.7-150300.4.11.1
External linkshttp://www.suse.com/support/update/announcement/2023/suse-su-20231702-1/
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.