The version of httpd24 installed on the remote host is prior to 2.4.58-1.101. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2023-1877 advisory.

    Out-of-bounds Read vulnerability in mod_macro of Apache HTTP Server.This issue affects Apache HTTP Server:
    through 2.4.57. (CVE-2023-31122)

    A flaw was found in httpd. This flaw allows an attacker opening an HTTP/2 connection with an initial     window size of 0 to block handling of that connection indefinitely in the Apache HTTP Server. This     vulnerability can exhaust worker resources in the server, similar to the well-known slow loris attack     pattern. (CVE-2023-43622)

    DescriptionA flaw was found in mod_http2. When a HTTP/2 stream is reset (RST frame) by a client, there is     a time window were the request's memory resources were not reclaimed immediately. Instead, de-allocation     was deferred to connection close. A client could send new requests and resets, keeping the connection busy     and open, causing the memory footprint to keep on growing. On connection close, all resources are     reclaimed but the process might run out of memory before connection close.

    StatementDuring normal HTTP/2 use, the probability of encountering this issue is very low. The kept     memory would not become noticeable before the connection closes or times out.

    MitigationMitigation for this issue is either not available or the currently available options don't meet     the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread     installation base or stability. (CVE-2023-45802)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

Amazon Linux AMI : httpd24 (ALAS-2023-1877)

high Nessus Plugin ID 184389

Version 1.1

Version 1.0

Version 1.1 Dec 12, 2024, 9:55 AM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202412120955
Version 1.0 Nov 4, 2023, 4:40 AM New Plugin Feed: 202311040440