Amazon Linux AMI update for php54-pecl-memcached

1) HTTP response splitting

EUVDB-ID: #VU71490

Risk: Medium

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

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:
    php54-pecl-memcached-2.1.0-3.10.amzn1.i686
    php54-pecl-memcached-debuginfo-2.1.0-3.10.amzn1.i686

src:
    php54-pecl-memcached-2.1.0-3.10.amzn1.src

x86_64:
    php54-pecl-memcached-debuginfo-2.1.0-3.10.amzn1.x86_64
    php54-pecl-memcached-2.1.0-3.10.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

php54-pecl-memcached: before 2.1.0-3.10

External links

http://alas.aws.amazon.com/ALAS-2023-1670.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.