Amazon Linux AMI update for php55-pecl-memcached

1) HTTP response splitting

EUVDB-ID: #VU71490

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-26635

CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP splitting attacks.

The vulnerability exists due improper NULL termination when processing CRLF character sequences. A remote attacker can send specially crafted request containing CRLF sequence and make the application to send a split HTTP response.

Successful exploitation of the vulnerability may allow an attacker perform cache poisoning attack.

Mitigation

Update the affected packages:

i686:
    php55-pecl-memcached-debuginfo-2.2.0-5.17.amzn1.i686
    php55-pecl-memcached-2.2.0-5.17.amzn1.i686

src:
    php55-pecl-memcached-2.2.0-5.17.amzn1.src

x86_64:
    php55-pecl-memcached-debuginfo-2.2.0-5.17.amzn1.x86_64
    php55-pecl-memcached-2.2.0-5.17.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

php55-pecl-memcached: before 2.2.0-5.17

CPE2.3

• cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*
• cpe:2.3:a:amazon_web_services:php55-pecl-memcached:*:*:*:*:*:amazon_linux_ami:*:*

External links

https://alas.aws.amazon.com/ALAS-2023-1671.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.