SUSE update for ovmf



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-38578
CWE-ID CWE-787
Exploitation vector Local
Public exploit N/A
Vulnerable software
SUSE Linux Enterprise Server for SAP Applications 15
Operating systems & Components / Operating system

SUSE Linux Enterprise Server 15 SP2 LTSS
Operating systems & Components / Operating system

SUSE Linux Enterprise Server 15
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing 15
Operating systems & Components / Operating system

SUSE Enterprise Storage
Operating systems & Components / Operating system

qemu-ovmf-x86_64
Operating systems & Components / Operating system package or component

qemu-uefi-aarch64
Operating systems & Components / Operating system package or component

ovmf-tools
Operating systems & Components / Operating system package or component

ovmf
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Out-of-bounds write

EUVDB-ID: #VU75395

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-38578

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in MdeModulePkg/Core/PiSmmCore/PiSmmCore.c. A local user trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package ovmf to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 15: SP2

SUSE Linux Enterprise Server 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise Server 15: SP2

SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS: 15-SP2

SUSE Linux Enterprise High Performance Computing 15: SP2

SUSE Enterprise Storage: 7.1

qemu-ovmf-x86_64: before 201911-150200.7.27.1

qemu-uefi-aarch64: before 201911-150200.7.27.1

ovmf-tools: before 201911-150200.7.27.1

ovmf: before 201911-150200.7.27.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2023/suse-su-20231921-1/


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.



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