Amazon Linux AMI update for redis6

1) Race condition

EUVDB-ID: #VU82200

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-45145

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

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

The vulnerability exists due to a race condition between listen(2) and chmod(2) calls on startup. A local user can exploit the race and escalate privileges on the system.

Mitigation

Update the affected packages:

aarch64:
    redis6-debuginfo-6.2.14-1.amzn2023.0.1.aarch64
    redis6-devel-6.2.14-1.amzn2023.0.1.aarch64
    redis6-6.2.14-1.amzn2023.0.1.aarch64
    redis6-debugsource-6.2.14-1.amzn2023.0.1.aarch64

noarch:
    redis6-doc-6.2.14-1.amzn2023.0.1.noarch

src:
    redis6-6.2.14-1.amzn2023.0.1.src

x86_64:
    redis6-devel-6.2.14-1.amzn2023.0.1.x86_64
    redis6-debuginfo-6.2.14-1.amzn2023.0.1.x86_64
    redis6-6.2.14-1.amzn2023.0.1.x86_64
    redis6-debugsource-6.2.14-1.amzn2023.0.1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

redis6: All versions

CPE2.3

• cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*
• cpe:2.3:a:amazon_web_services:redis6:*:*:*:*:*:amazon_linux_ami:*:*

External links

https://alas.aws.amazon.com/AL2023/ALAS-2024-513.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.