SB202502194597 - Amazon Linux AMI update for memcached

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Buffer overflow (CVE-ID: CVE-2023-46852)

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.

2) Off-by-one (CVE-ID: CVE-2023-46853)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to an off-by-one error in proxy_request.c. A remote attacker can send a specially crafted HTTP request to the proxy server, trigger an off-by-one error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

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