Amazon Linux AMI update for guava

1) Incorrect default permissions

EUVDB-ID: #VU77107

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-2976

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions in com.google.common.io.FileBackedOutputStream. A local user with access to the system can view contents of files and directories or modify them.

Mitigation

Update the affected packages:

noarch:
    guava-testlib-31.0.1-3.amzn2023.0.6.noarch
    guava-31.0.1-3.amzn2023.0.6.noarch
    guava-javadoc-31.0.1-3.amzn2023.0.6.noarch

src:
    guava-31.0.1-3.amzn2023.0.6.src

Vulnerable software versions

Amazon Linux AMI: All versions

guava: All versions

CPE2.3

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

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-458.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.