Amazon Linux AMI update for flac

1) Out-of-bounds read

EUVDB-ID: #VU69342

Risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-0561

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

Exploit availability: No

Description

The vulnerability allows a local application to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the append_to_verify_fifo_interleaved_ in stream_encoder.c in Media Framework. A local application can trigger an out-of-bounds read error and read contents of memory on the system.

Mitigation

Update the affected packages:

aarch64:
    flac-debuginfo-1.3.4-1.amzn2023.0.2.aarch64
    flac-libs-debuginfo-1.3.4-1.amzn2023.0.2.aarch64
    flac-libs-1.3.4-1.amzn2023.0.2.aarch64
    flac-1.3.4-1.amzn2023.0.2.aarch64
    flac-debugsource-1.3.4-1.amzn2023.0.2.aarch64
    flac-devel-1.3.4-1.amzn2023.0.2.aarch64

src:
    flac-1.3.4-1.amzn2023.0.2.src

x86_64:
    flac-debuginfo-1.3.4-1.amzn2023.0.2.x86_64
    flac-1.3.4-1.amzn2023.0.2.x86_64
    flac-libs-debuginfo-1.3.4-1.amzn2023.0.2.x86_64
    flac-libs-1.3.4-1.amzn2023.0.2.x86_64
    flac-debugsource-1.3.4-1.amzn2023.0.2.x86_64
    flac-devel-1.3.4-1.amzn2023.0.2.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

flac: All versions

CPE2.3

• cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*
• cpe:2.3:a:amazon_web_services:flac:*:*:*:*:*:amazon_linux_ami:*:*

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-008.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.