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Amazon Linux 2 : libbpf (ALAS-2022-1889)

high Nessus Plugin ID 168439

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of libbpf installed on the remote host is prior to 0.5.0-2. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2022-1889 advisory.

 A vulnerability classified as critical has been found in Linux Kernel. Affected is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component libbpf. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211032. (CVE-2022-3534)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update libbpf' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2022-1889.html

https://alas.aws.amazon.com/cve/html/CVE-2022-3534.html

Plugin Details

Severity: High

ID: 168439

File Name: al2_ALAS-2022-1889.nasl

Version: 1.3

Type: local

Agent: unix

Published: 12/7/2022

Updated: 12/11/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.7

Temporal Score: 5.7

Vector: CVSS2#AV:A/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2022-3534

CVSS v3

Risk Factor: High

Base Score: 8

Temporal Score: 7

Vector: CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:libbpf-static, p-cpe:/a:amazon:linux:libbpf, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:libbpf-devel, p-cpe:/a:amazon:linux:libbpf-debuginfo

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 12/1/2022

Vulnerability Publication Date: 10/17/2022

Reference Information

CVE: CVE-2022-3534