Amazon Linux AMI update for file

1) Out-of-bounds read

EUVDB-ID: #VU80421

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-48554

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the file_copystr() function in funcs.c. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds read error and crash the application.

Mitigation

Update the affected packages:

aarch64:
    file-libs-debuginfo-5.39-7.amzn2023.0.4.aarch64
    file-devel-5.39-7.amzn2023.0.4.aarch64
    file-static-5.39-7.amzn2023.0.4.aarch64
    file-debuginfo-5.39-7.amzn2023.0.4.aarch64
    file-debugsource-5.39-7.amzn2023.0.4.aarch64
    file-libs-5.39-7.amzn2023.0.4.aarch64
    file-5.39-7.amzn2023.0.4.aarch64

noarch:
    python3-file-magic-5.39-7.amzn2023.0.4.noarch

src:
    file-5.39-7.amzn2023.0.4.src

x86_64:
    file-static-5.39-7.amzn2023.0.4.x86_64
    file-devel-5.39-7.amzn2023.0.4.x86_64
    file-libs-5.39-7.amzn2023.0.4.x86_64
    file-debugsource-5.39-7.amzn2023.0.4.x86_64
    file-libs-debuginfo-5.39-7.amzn2023.0.4.x86_64
    file-debuginfo-5.39-7.amzn2023.0.4.x86_64
    file-5.39-7.amzn2023.0.4.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

file: before 5.39-7

CPE2.3

• cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*
• cpe:2.3:o:amazon_web_services:file:*:*:*:*:*:amazon_linux_ami:*:*

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-333.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.