Amazon Linux AMI update for kernel



Published: 2024-08-06
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-2124
CWE-ID CWE-125
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe 		Amazon Linux AMI
Operating systems & Components / Operating system

kernel
Operating systems & Components / Operating system package or component

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU75323

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-2124

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack..

The vulnerability exists due to a boundary condition within the XFS subsystem in Linux kernel. A local user can trigger an out-of-bounds read error and crash the kernel.

Mitigation

Update the affected packages:

aarch64:
    kernel-libbpf-6.1.25-37.47.amzn2023.aarch64
    kernel-libbpf-static-6.1.25-37.47.amzn2023.aarch64
    bpftool-debuginfo-6.1.25-37.47.amzn2023.aarch64
    kernel-tools-6.1.25-37.47.amzn2023.aarch64
    bpftool-6.1.25-37.47.amzn2023.aarch64
    python3-perf-6.1.25-37.47.amzn2023.aarch64
    kernel-tools-devel-6.1.25-37.47.amzn2023.aarch64
    kernel-tools-debuginfo-6.1.25-37.47.amzn2023.aarch64
    kernel-headers-6.1.25-37.47.amzn2023.aarch64
    python3-perf-debuginfo-6.1.25-37.47.amzn2023.aarch64
    kernel-libbpf-devel-6.1.25-37.47.amzn2023.aarch64
    perf-debuginfo-6.1.25-37.47.amzn2023.aarch64
    kernel-livepatch-6.1.25-37.47-1.0-0.amzn2023.aarch64
    perf-6.1.25-37.47.amzn2023.aarch64
    kernel-debuginfo-6.1.25-37.47.amzn2023.aarch64
    kernel-6.1.25-37.47.amzn2023.aarch64
    kernel-debuginfo-common-aarch64-6.1.25-37.47.amzn2023.aarch64
    kernel-devel-6.1.25-37.47.amzn2023.aarch64

src:
    kernel-6.1.25-37.47.amzn2023.src

x86_64:
    kernel-libbpf-static-6.1.25-37.47.amzn2023.x86_64
    kernel-tools-6.1.25-37.47.amzn2023.x86_64
    kernel-headers-6.1.25-37.47.amzn2023.x86_64
    python3-perf-debuginfo-6.1.25-37.47.amzn2023.x86_64
    kernel-libbpf-6.1.25-37.47.amzn2023.x86_64
    bpftool-6.1.25-37.47.amzn2023.x86_64
    kernel-libbpf-devel-6.1.25-37.47.amzn2023.x86_64
    bpftool-debuginfo-6.1.25-37.47.amzn2023.x86_64
    perf-debuginfo-6.1.25-37.47.amzn2023.x86_64
    kernel-tools-debuginfo-6.1.25-37.47.amzn2023.x86_64
    kernel-livepatch-6.1.25-37.47-1.0-0.amzn2023.x86_64
    kernel-tools-devel-6.1.25-37.47.amzn2023.x86_64
    perf-6.1.25-37.47.amzn2023.x86_64
    python3-perf-6.1.25-37.47.amzn2023.x86_64
    kernel-debuginfo-6.1.25-37.47.amzn2023.x86_64
    kernel-6.1.25-37.47.amzn2023.x86_64
    kernel-debuginfo-common-x86_64-6.1.25-37.47.amzn2023.x86_64
    kernel-devel-6.1.25-37.47.amzn2023.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

kernel: before 6.1.25-37.47

CPE2.3 External links

http://alas.aws.amazon.com/AL2023/ALAS-2023-169.html


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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