The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2024:3962-1 advisory.

    - CVE-2023-45802: HTTP/2 stream memory not reclaimed right away on RST (bsc#1216423).

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

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

According to the versions of the httpd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - 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)

  - When a HTTP/2 stream was reset (RST frame) by a client, there was 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 and causing the memory     footprint to keep on growing. On connection close, all resources were reclaimed, but the process might run     out of memory before that. This was found by the reporter during testing of CVE-2023-44487 (HTTP/2 Rapid     Reset Exploit) with their own test client. During 'normal' HTTP/2 use, the probability to hit this bug is     very low. The kept memory would not become noticeable before the connection closes or times out. Users are     recommended to upgrade to version 2.4.58, which fixes the issue. (CVE-2023-45802)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the httpd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - 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)

  - When a HTTP/2 stream was reset (RST frame) by a client, there was 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 and causing the memory     footprint to keep on growing. On connection close, all resources were reclaimed, but the process might run     out of memory before that. This was found by the reporter during testing of CVE-2023-44487 (HTTP/2 Rapid     Reset Exploit) with their own test client. During 'normal' HTTP/2 use, the probability to hit this bug is     very low. The kept memory would not become noticeable before the connection closes or times out. Users are     recommended to upgrade to version 2.4.58, which fixes the issue. (CVE-2023-45802)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:3121 advisory.

    The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

    Security Fix(es):

    * httpd: mod_macro: out-of-bounds read vulnerability (CVE-2023-31122)

    * mod_http2: reset requests exhaust memory (incomplete fix of CVE-2023-44487) (CVE-2023-45802)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.10 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-0259c3f26f advisory.

    - New version 2.0.25
    - Security update

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

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

The remote Fedora 37 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-c0c6a91330 advisory.

    - New version 2.0.25
    - Security update

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

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

According to its self-reported version, the Tenable SecurityCenter running on the remote host is . It is, therefore, affected by multiple vulnerabilities as referenced in the TNS-2023-44 advisory.

  - Security Center leverages third-party software to help provide underlying functionality. One of the third-     party components (Apache) was found to contain vulnerabilities, and updated versions have been made     available by the providers. Out of caution and in line with best practice, Tenable has opted to upgrade     these components to address the potential impact of the issues. Security Center Patch SC-202312.1 updates     Apache to version 2.4.58 to address the identified vulnerabilities. Tenable has released Security Center     Patch SC-202312.1 to address these issues. The installation files can be obtained from the Tenable     Downloads Portal: https://www.tenable.com/downloads/security-center (CVE-2023-43622, CVE-2023-45802)

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

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3818 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-3818-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                   Bastien Roucaris     May 24, 2024                                  https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : apache2     Version        : 2.4.59-1~deb10u1     CVE ID         : CVE-2019-17567 CVE-2023-31122 CVE-2023-38709 CVE-2023-45802                      CVE-2024-24795 CVE-2024-27316     Debian Bug     : 1068412

    Multiple vulnerabilities have been discovered in the Apache HTTP server,     which may result in HTTP response splitting, denial of service, or     authorization bypass.

    CVE-2019-17567

         mod_proxy_wstunnel configured on an URL that is not          necessarily Upgraded by the origin server was tunneling          the whole connection regardless, thus allowing for subsequent requests          on the same connection to pass through with no HTTP validation,          authentication or authorization possibly configured.

    CVE-2023-31122

        An Out-of-bounds Read vulnerability was found in mod_macro.

    CVE-2023-38709

        A faulty input validation was found in the core of Apache         that allows malicious or exploitable backend/content generators         to split HTTP responses.

    CVE-2023-45802

        When an HTTP/2 stream was reset (RST frame) by a client, there was 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 and causing the memory footprint to keep on growing.
        On connection close, all resources were reclaimed, but the process         might run out of memory before that.

    CVE-2024-24795

        HTTP Response splitting in multiple modules in Apache HTTP Server         allows an attacker that can inject malicious response headers into         backend applications to cause an HTTP desynchronization attack.

    CVE-2024-27316

        HTTP/2 incoming headers exceeding the limit are temporarily         buffered in nghttp2 in order to generate an informative HTTP         413 response. If a client does not stop sending headers, this         leads to memory exhaustion.

    For Debian 10 buster, these problems have been fixed in version     2.4.59-1~deb10u1.

    Please note that the fix of CVE-2024-24795, may break unrelated     CGI-BIN scripts. As part of the security fix, the Apache webserver     mod_cgi module has stopped relaying the Content-Length field     of the HTTP reply header from the CGI programs back to the client     in cases where the connection is to be closed and the client     is able to read until end-of-file. You may restore legacy     behavior for trusted scripts by adding the following configuration     environment variable to the     Apache configuration, scoped to the <Directory> entry or     entries in which scripts are being served via CGI,     SetEnv ap_trust_cgilike_cl yes.
    The definitive fix is to read the whole input,     re-allocating the input buffer to fit as more input is received     in CGI-BIN scripts, and and to not trust that     CONTENT_LENGTH variable is always present.

    We recommend that you upgrade your apache2 packages.

    For the detailed security status of apache2 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/apache2

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

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

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

An update of the httpd package has been released.

The version of httpd installed on the remote host is prior to 2.4.58-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-2322 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.

ID	名稱	產品	系列	已發布	已更新	嚴重性
210760	SUSE SLES15 Security Update : apache2 (SUSE-SU-2024:3962-1)	Nessus	SuSE Local Security Checks	2024/11/12	2024/11/12	medium
188994	EulerOS 2.0 SP9 : httpd (EulerOS-SA-2023-3302)	Nessus	Huawei Local Security Checks	2024/1/16	2024/1/16	high
191860	EulerOS 2.0 SP8 : httpd (EulerOS-SA-2024-1273)	Nessus	Huawei Local Security Checks	2024/3/12	2024/3/12	high
192080	EulerOS Virtualization 2.10.0 : httpd (EulerOS-SA-2024-1380)	Nessus	Huawei Local Security Checks	2024/3/14	2024/3/14	high
197225	EulerOS Virtualization 3.0.6.0 : httpd (EulerOS-SA-2024-1684)	Nessus	Huawei Local Security Checks	2024/5/17	2024/5/17	high
197755	RHEL 8 : httpd:2.4 (RHSA-2024:3121)	Nessus	Red Hat Local Security Checks	2024/5/23	2025/4/29	high
183760	Fedora 38 : mod_http2 (2023-0259c3f26f)	Nessus	Fedora Local Security Checks	2023/10/24	2024/11/14	critical
184790	Fedora 37 : mod_http2 (2023-c0c6a91330)	Nessus	Fedora Local Security Checks	2023/11/7	2024/11/14	critical
187074	Tenable SecurityCenter Multiple Vulnerabilities (TNS-2023-44)	Nessus	Misc.	2023/12/19	2024/5/10	high
197924	Debian dla-3818 : apache2 - security update	Nessus	Debian Local Security Checks	2024/5/25	2024/7/12	medium
204490	Photon OS 4.0: Httpd PHSA-2023-4.0-0502	Nessus	PhotonOS Local Security Checks	2024/7/24	2024/7/24	high
184280	Amazon Linux 2 : httpd (ALAS-2023-2322)	Nessus	Amazon Linux Local Security Checks	2023/11/2	2024/12/11	high

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