Amazon Linux AMI update for future

1) Incorrect Regular Expression

EUVDB-ID: #VU71137

Risk: Medium

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

CVE-ID: CVE-2022-40899

CWE-ID: CWE-185 - Incorrect Regular Expression

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation when processing the Set-Cookie header. A remote attacker can send a specially crafted HTTP request to the application and perform a regular expression denial of service (ReDoS) attack.

Mitigation

Update the affected packages:

noarch:
    python3-future-0.18.3-1.amzn2023.0.1.noarch

src:
    future-0.18.3-1.amzn2023.0.1.src

Vulnerable software versions

Amazon Linux AMI: All versions

future: before 0.18.3-1

External links

http://alas.aws.amazon.com/AL2023/ALAS-2023-173.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.