Amazon Linux AMI update for docker

1) Resource exhaustion

EUVDB-ID: #VU82064

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-39325

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to excessive consumption of internal resources when handling HTTP/2 requests. A remote attacker can bypass the http2.Server.MaxConcurrentStreams setting by creating new connections while the current connections are still being processed, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages:

aarch64:
    docker-debuginfo-24.0.5-1.amzn2023.0.2.aarch64
    docker-24.0.5-1.amzn2023.0.2.aarch64
    docker-debugsource-24.0.5-1.amzn2023.0.2.aarch64

src:
    docker-24.0.5-1.amzn2023.0.2.src

x86_64:
    docker-debuginfo-24.0.5-1.amzn2023.0.2.x86_64
    docker-24.0.5-1.amzn2023.0.2.x86_64
    docker-debugsource-24.0.5-1.amzn2023.0.2.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

docker: before 24.0.5-1

CPE2.3

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

External links

http://alas.aws.amazon.com/AL2023/ALAS-2023-397.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.