SUSE update for libbpf

Published: 2023-03-17

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-3534 CVE-2022-3606
CWE-ID	CWE-416 CWE-476
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	SUSE Manager Retail Branch Server Operating systems & Components / Operating system SUSE Manager Server Operating systems & Components / Operating system SUSE Manager Proxy Operating systems & Components / Operating system SUSE Linux Enterprise Module for Basesystem Operating systems & Components / Operating system SUSE Linux Enterprise Desktop Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system openSUSE Leap Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system libbpf0-32bit-debuginfo Operating systems & Components / Operating system package or component libbpf0-32bit Operating systems & Components / Operating system package or component libbpf0-debuginfo Operating systems & Components / Operating system package or component libbpf0 Operating systems & Components / Operating system package or component libbpf-devel Operating systems & Components / Operating system package or component libbpf-debugsource Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU72466

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-3534

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the btf_dump_name_dups() function in tools/lib/bpf/btf_dump.c. A local user can execute arbitrary code with elevated privileges.

Mitigation

Update the affected package libbpf to the latest version.

Vulnerable software versions

SUSE Manager Retail Branch Server: 4.3

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

SUSE Linux Enterprise Module for Basesystem: 15-SP4

SUSE Linux Enterprise Desktop: 15-SP4

SUSE Linux Enterprise Server: 15-SP4

openSUSE Leap: 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

libbpf0-32bit-debuginfo: before 0.5.0-150400.3.3.1

libbpf0-32bit: before 0.5.0-150400.3.3.1

libbpf0-debuginfo: before 0.5.0-150400.3.3.1

libbpf0: before 0.5.0-150400.3.3.1

libbpf-devel: before 0.5.0-150400.3.3.1

libbpf-debugsource: before 0.5.0-150400.3.3.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20230405-1/

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) NULL pointer dereference

EUVDB-ID: #VU73782