Amazon Linux AMI update for busybox

1) Out-of-bounds write

EUVDB-ID: #VU80391

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-48174

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input ash.c. A remote attacker can send specially crafted data to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Update the affected packages:

i686:
    busybox-debuginfo-1.34.1-1.16.amzn1.i686
    busybox-petitboot-1.34.1-1.16.amzn1.i686
    busybox-1.34.1-1.16.amzn1.i686

src:
    busybox-1.34.1-1.16.amzn1.src

x86_64:
    busybox-1.34.1-1.16.amzn1.x86_64
    busybox-debuginfo-1.34.1-1.16.amzn1.x86_64
    busybox-petitboot-1.34.1-1.16.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

busybox: before 1.34.1-1.16

External links

http://alas.aws.amazon.com/ALAS-2023-1832.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.