Amazon Linux AMI update for golang

1) Improper Certificate Validation

EUVDB-ID: #VU78913

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-29409

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to verifying certificate chains containing large RSA keys is slow. A remote attacker can cause a client/server to expend significant CPU time verifying signatures.

Mitigation

Update the affected packages:

aarch64:
    golang-1.20.7-1.amzn2023.0.1.aarch64
    golang-bin-1.20.7-1.amzn2023.0.1.aarch64
    golang-shared-1.20.7-1.amzn2023.0.1.aarch64

noarch:
    golang-docs-1.20.7-1.amzn2023.0.1.noarch
    golang-misc-1.20.7-1.amzn2023.0.1.noarch
    golang-src-1.20.7-1.amzn2023.0.1.noarch
    golang-tests-1.20.7-1.amzn2023.0.1.noarch

src:
    golang-1.20.7-1.amzn2023.0.1.src

x86_64:
    golang-shared-1.20.7-1.amzn2023.0.1.x86_64
    golang-1.20.7-1.amzn2023.0.1.x86_64
    golang-bin-1.20.7-1.amzn2023.0.1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

golang: All versions

CPE2.3

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

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-310.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.