SUSE update for ovmf



Published: 2021-06-22
Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2019-14584
CVE-2021-28210
CVE-2021-28211
CWE-ID CWE-476
CWE-674
CWE-122
Exploitation vector Local
Public exploit N/A
Vulnerable software
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SUSE Linux Enterprise Server
Operating systems & Components / Operating system

qemu-ovmf-x86_64
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 information about 3 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU54483

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-2019-14584

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error. A local user can run a specially crafted program to escalate privileges on the system.

Mitigation

Update the affected package ovmf to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP2-BCL

qemu-ovmf-x86_64: before 2015+git1462940744.321151f-19.23.1

ovmf-tools: before 2015+git1462940744.321151f-19.23.1

ovmf: before 2015+git1462940744.321151f-19.23.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20212117-1/


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) Uncontrolled Recursion

EUVDB-ID: #VU62014

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-2021-28210

CWE-ID: CWE-674 - Uncontrolled Recursion

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to an unlimited recursion in DxeCore. A local user can execute arbitrary code on the target system.

Mitigation

Update the affected package ovmf to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP2-BCL

qemu-ovmf-x86_64: before 2015+git1462940744.321151f-19.23.1

ovmf-tools: before 2015+git1462940744.321151f-19.23.1

ovmf: before 2015+git1462940744.321151f-19.23.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20212117-1/


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.

3) Heap-based buffer overflow

EUVDB-ID: #VU54481

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-2021-28211

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the LzmaUefiDecompressGetInfo() function. A local user can run a specially crafted program to trigger a heap-based buffer overflow and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package ovmf to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 12-SP2-BCL

qemu-ovmf-x86_64: before 2015+git1462940744.321151f-19.23.1

ovmf-tools: before 2015+git1462940744.321151f-19.23.1

ovmf: before 2015+git1462940744.321151f-19.23.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20212117-1/


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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