Amazon Linux AMI update for vim

1) Heap-based buffer overflow

EUVDB-ID: #VU70130

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-4141

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error. A remote attacker can trick the victim to execute the CTRL-W gf in the expression used in the RHS of the substitute command, 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:

i686:
    vim-minimal-9.0.1006-1.1.amzn1.i686
    vim-common-9.0.1006-1.1.amzn1.i686
    vim-enhanced-9.0.1006-1.1.amzn1.i686
    vim-debuginfo-9.0.1006-1.1.amzn1.i686

noarch:
    vim-filesystem-9.0.1006-1.1.amzn1.noarch
    vim-data-9.0.1006-1.1.amzn1.noarch

src:
    vim-9.0.1006-1.1.amzn1.src

x86_64:
    vim-minimal-9.0.1006-1.1.amzn1.x86_64
    vim-debuginfo-9.0.1006-1.1.amzn1.x86_64
    vim-enhanced-9.0.1006-1.1.amzn1.x86_64
    vim-common-9.0.1006-1.1.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

vim: before 9.0.1006-1.1

CPE2.3

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

External links

https://alas.aws.amazon.com/ALAS-2023-1664.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.