Amazon Linux AMI update for memcached

Published: 2025-02-19

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-46852 CVE-2023-46853
CWE-ID	CWE-119 CWE-193
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Amazon Linux AMI Operating systems & Components / Operating system memcached Operating systems & Components / Operating system package or component
Vendor	Amazon Web Services

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU83025

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-46852

CWE-ID: CWE-119 - Memory corruption

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 proxy_run_coroutine() function in proto_proxy.c when processing multiget requests with multiple spaces in proxy mode. A remote attacker can send a specially crafted HTTP request to trigger memory corruption 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:
    memcached-devel-1.6.22-2.amzn2023.0.1.aarch64
    memcached-debugsource-1.6.22-2.amzn2023.0.1.aarch64
    memcached-debuginfo-1.6.22-2.amzn2023.0.1.aarch64
    memcached-selinux-1.6.22-2.amzn2023.0.1.aarch64
    memcached-1.6.22-2.amzn2023.0.1.aarch64

src:
    memcached-1.6.22-2.amzn2023.0.1.src

x86_64:
    memcached-debugsource-1.6.22-2.amzn2023.0.1.x86_64
    memcached-devel-1.6.22-2.amzn2023.0.1.x86_64
    memcached-debuginfo-1.6.22-2.amzn2023.0.1.x86_64
    memcached-selinux-1.6.22-2.amzn2023.0.1.x86_64
    memcached-1.6.22-2.amzn2023.0.1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

memcached: All versions

CPE2.3

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-449.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.

2) Off-by-one

EUVDB-ID: #VU83024