Amazon Linux AMI update for redis6

1) Heap-based buffer overflow

EUVDB-ID: #VU78506

Risk: Medium

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

CVE-ID: CVE-2022-24834

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the cjson and cmsgpack libraries. A remote attacker can trick the victim into using a specially crafted Lua script to trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected packages:

aarch64:
    redis6-debuginfo-6.2.13-1.amzn2023.0.1.aarch64
    redis6-devel-6.2.13-1.amzn2023.0.1.aarch64
    redis6-6.2.13-1.amzn2023.0.1.aarch64
    redis6-debugsource-6.2.13-1.amzn2023.0.1.aarch64

noarch:
    redis6-doc-6.2.13-1.amzn2023.0.1.noarch

src:
    redis6-6.2.13-1.amzn2023.0.1.src

x86_64:
    redis6-debuginfo-6.2.13-1.amzn2023.0.1.x86_64
    redis6-devel-6.2.13-1.amzn2023.0.1.x86_64
    redis6-6.2.13-1.amzn2023.0.1.x86_64
    redis6-debugsource-6.2.13-1.amzn2023.0.1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

redis6: before 6.2.13-1

CPE2.3

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

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-291.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. However, proof of concept for this vulnerability is available.