Amazon Linux AMI update for nasm

1) Heap-based buffer overflow

EUVDB-ID: #VU84813

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-2022-44370

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 within the quote_for_pmake() function in asm/nasm.c. A remote attacker can pass specially crafted file to the compiler, 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:
    nasm-2.15.05-1.amzn2023.0.4.aarch64
    nasm-debugsource-2.15.05-1.amzn2023.0.4.aarch64
    nasm-rdoff-debuginfo-2.15.05-1.amzn2023.0.4.aarch64
    nasm-rdoff-2.15.05-1.amzn2023.0.4.aarch64
    nasm-debuginfo-2.15.05-1.amzn2023.0.4.aarch64

noarch:
    nasm-doc-2.15.05-1.amzn2023.0.4.noarch

src:
    nasm-2.15.05-1.amzn2023.0.4.src

x86_64:
    nasm-debuginfo-2.15.05-1.amzn2023.0.4.x86_64
    nasm-debugsource-2.15.05-1.amzn2023.0.4.x86_64
    nasm-rdoff-debuginfo-2.15.05-1.amzn2023.0.4.x86_64
    nasm-2.15.05-1.amzn2023.0.4.x86_64
    nasm-rdoff-2.15.05-1.amzn2023.0.4.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

nasm: before 2.15.05-1

CPE2.3

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

External links

http://alas.aws.amazon.com/AL2023/ALAS-2023-172.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.