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

  - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of     Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to. This     issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.53 and prior versions.
    (CVE-2022-26377)

  - Apache HTTP Server 2.4.53 and earlier on Windows may read beyond bounds when configured to process     requests with the mod_isapi module. (CVE-2022-28330)

  - The ap_rwrite() function in Apache HTTP Server 2.4.53 and earlier may read unintended memory if an     attacker can cause the server to reflect very large input using ap_rwrite() or ap_rputs(), such as with     mod_luas r:puts() function. Modules compiled and distributed separately from Apache HTTP Server that use     the 'ap_rputs' function and may pass it a very large (INT_MAX or larger) string must be compiled against     current headers to resolve the issue. (CVE-2022-28614)

  - Apache HTTP Server 2.4.53 and earlier may crash or disclose information due to a read beyond bounds in     ap_strcmp_match() when provided with an extremely large input buffer. While no code distributed with the     server can be coerced into such a call, third-party modules or lua scripts that use ap_strcmp_match() may     hypothetically be affected. (CVE-2022-28615)

  - In Apache HTTP Server 2.4.53 and earlier, a malicious request to a lua script that calls r:parsebody(0)     may cause a denial of service due to no default limit on possible input size. (CVE-2022-29404)

  - If Apache HTTP Server 2.4.53 is configured to do transformations with mod_sed in contexts where the input     to mod_sed may be very large, mod_sed may make excessively large memory allocations and trigger an abort.
    (CVE-2022-30522)

  - Apache HTTP Server 2.4.53 and earlier may return lengths to applications calling r:wsread() that point     past the end of the storage allocated for the buffer. (CVE-2022-30556)

  - Apache HTTP Server 2.4.53 and earlier may not send the X-Forwarded-* headers to the origin server based on     client side Connection header hop-by-hop mechanism. This may be used to bypass IP based authentication on     the origin server/application. (CVE-2022-31813)

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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-003821 advisory.

    In Apache HTTP Server 2.4.53 and earlier, a malicious request to a lua script that calls r:parsebody(0)     may cause a denial of service due to no default limit on possible input size.

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

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

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2338-1 advisory.

  - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of     Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to. This     issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.53 and prior versions.
    (CVE-2022-26377)

  - The ap_rwrite() function in Apache HTTP Server 2.4.53 and earlier may read unintended memory if an     attacker can cause the server to reflect very large input using ap_rwrite() or ap_rputs(), such as with     mod_luas r:puts() function. Modules compiled and distributed separately from Apache HTTP Server that use     the 'ap_rputs' function and may pass it a very large (INT_MAX or larger) string must be compiled against     current headers to resolve the issue. (CVE-2022-28614)

  - Apache HTTP Server 2.4.53 and earlier may crash or disclose information due to a read beyond bounds in     ap_strcmp_match() when provided with an extremely large input buffer. While no code distributed with the     server can be coerced into such a call, third-party modules or lua scripts that use ap_strcmp_match() may     hypothetically be affected. (CVE-2022-28615)

  - In Apache HTTP Server 2.4.53 and earlier, a malicious request to a lua script that calls r:parsebody(0)     may cause a denial of service due to no default limit on possible input size. (CVE-2022-29404)

  - If Apache HTTP Server 2.4.53 is configured to do transformations with mod_sed in contexts where the input     to mod_sed may be very large, mod_sed may make excessively large memory allocations and trigger an abort.
    (CVE-2022-30522)

  - Apache HTTP Server 2.4.53 and earlier may return lengths to applications calling r:wsread() that point     past the end of the storage allocated for the buffer. (CVE-2022-30556)

  - Apache HTTP Server 2.4.53 and earlier may not send the X-Forwarded-* headers to the origin server based on     client side Connection header hop-by-hop mechanism. This may be used to bypass IP based authentication on     the origin server/application. (CVE-2022-31813)

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

The version of httpd installed on the remote host is prior to 2.4.54-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2022-1812 advisory.

    An HTTP request smuggling vulnerability was found in the mod_proxy_ajp module of httpd. This flaw allows     an attacker to smuggle requests to the AJP server, where it forwards requests. (CVE-2022-26377)

    An out-of-bounds read vulnerability was found in the mod_isapi module of httpd. The issue occurs when     httpd is configured to process requests with the mod_isapi module. (CVE-2022-28330)

    An out-of-bounds read vulnerability was found in httpd. A very large input to the ap_rputs and ap_rwrite     functions can lead to an integer overflow and result in an out-of-bounds read. (CVE-2022-28614)

    An out-of-bounds read vulnerability was found in httpd. A very large input to the ap_strcmp_match function     can lead to an integer overflow and result in an out-of-bounds read. (CVE-2022-28615)

    A flaw was found in the mod_lua module of httpd. A malicious request to a Lua script that calls     parsebody(0) can lead to a denial of service due to no default limit on the possible input size.
    (CVE-2022-29404)

    A flaw was found in the mod_sed module of httpd. A very large input to the mod_sed module can result in a     denial of service due to excessively large memory allocations. (CVE-2022-30522)

    A flaw was found in the mod_lua module of httpd. The data returned by the wsread function may point past     the end of the storage allocated for the buffer, resulting in information disclosure. (CVE-2022-30556)

    A flaw was found in the mod_proxy module of httpd. The server may remove the X-Forwarded-* headers from a     request based on the client-side Connection header hop-by-hop mechanism. (CVE-2022-31813)

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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2022-2022-202 advisory.

    An HTTP request smuggling vulnerability was found in the mod_proxy_ajp module of httpd. This flaw allows     an attacker to smuggle requests to the AJP server, where it forwards requests. (CVE-2022-26377)

    An out-of-bounds read vulnerability was found in the mod_isapi module of httpd. The issue occurs when     httpd is configured to process requests with the mod_isapi module. (CVE-2022-28330)

    An out-of-bounds read vulnerability was found in httpd. A very large input to the ap_rputs and ap_rwrite     functions can lead to an integer overflow and result in an out-of-bounds read. (CVE-2022-28614)

    An out-of-bounds read vulnerability was found in httpd. A very large input to the ap_strcmp_match function     can lead to an integer overflow and result in an out-of-bounds read. (CVE-2022-28615)

    A flaw was found in the mod_lua module of httpd. A malicious request to a Lua script that calls     parsebody(0) can lead to a denial of service due to no default limit on the possible input size.
    (CVE-2022-29404)

    A flaw was found in the mod_sed module of httpd. A very large input to the mod_sed module can result in a     denial of service due to excessively large memory allocations. (CVE-2022-30522)

    A flaw was found in the mod_lua module of httpd. The data returned by the wsread function may point past     the end of the storage allocated for the buffer, resulting in information disclosure. (CVE-2022-30556)

    A flaw was found in the mod_proxy module of httpd. The server may remove the X-Forwarded-* headers from a     request based on the client-side Connection header hop-by-hop mechanism. (CVE-2022-31813)

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.

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-8067 advisory.

    - Resolves: #2094997 - CVE-2022-26377 httpd: mod_proxy_ajp: Possible request       smuggling
    - Resolves: #2097032 - CVE-2022-28615 httpd: out-of-bounds read in       ap_strcmp_match()
    - Resolves: #2098248 - CVE-2022-31813 httpd: mod_proxy: X-Forwarded-For dropped       by hop-by-hop mechanism
    - Resolves: #2097016 - CVE-2022-28614 httpd: out-of-bounds read via ap_rwrite()
    - Resolves: #2097452 - CVE-2022-29404 httpd: mod_lua: DoS in r:parsebody
    - Resolves: #2097459 - CVE-2022-30522 httpd: mod_sed: DoS vulnerability
    - Resolves: #2097481 - CVE-2022-30556 httpd: mod_lua: Information disclosure       with websockets

Tenable has extracted the preceding description block directly from the Oracle 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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-072 advisory.

    There's a null pointer dereference and server-side request forgery flaw in httpd's mod_proxy module, when     it is configured to be used as a forward proxy. A crafted packet could be sent on the adjacent network to     the forward proxy that could cause a crash, or potentially SSRF via misdirected Unix Domain Socket     requests. In the worst case, this could cause a denial of service or compromise to confidentiality of     data. (CVE-2021-44224)

    A buffer overflow flaw in httpd's lua module could allow an out-of-bounds write. An attacker who is able     to submit a crafted request to an httpd instance that is using the lua module may be able to cause an     impact to confidentiality, integrity, and/or availability. (CVE-2021-44790)

    A flaw was found in the mod_lua module of httpd. A crafted request body can cause a read to a random     memory area due to an uninitialized value in functions called by the parsebody function. The highest treat     of this vulnerability is availability. (CVE-2022-22719)

    A flaw was found in httpd. The inbound connection is not closed when it fails to discard the request body,     which may expose the server to HTTP request smuggling. (CVE-2022-22720)

    A flaw was found in httpd, where it incorrectly limits the value of the LimitXMLRequestBody option. This     issue can lead to an integer overflow and later causes an out-of-bounds write. (CVE-2022-22721)

    An out-of-bounds read/write vulnerability was found in the mod_sed module of httpd. This flaw allows an     attacker to overwrite the memory of an httpd instance that is using mod_sed with data provided by the     attacker. (CVE-2022-23943)

    An HTTP request smuggling vulnerability was found in the mod_proxy_ajp module of httpd. This flaw allows     an attacker to smuggle requests to the AJP server, where it forwards requests. (CVE-2022-26377)

    An out-of-bounds read vulnerability was found in the mod_isapi module of httpd. The issue occurs when     httpd is configured to process requests with the mod_isapi module. (CVE-2022-28330)

    An out-of-bounds read vulnerability was found in httpd. A very large input to the ap_rputs and ap_rwrite     functions can lead to an integer overflow and result in an out-of-bounds read. (CVE-2022-28614)

    An out-of-bounds read vulnerability was found in httpd. A very large input to the ap_strcmp_match function     can lead to an integer overflow and result in an out-of-bounds read. (CVE-2022-28615)

    A flaw was found in the mod_lua module of httpd. A malicious request to a Lua script that calls     parsebody(0) can lead to a denial of service due to no default limit on the possible input size.
    (CVE-2022-29404)

    A flaw was found in the mod_sed module of httpd. A very large input to the mod_sed module can result in a     denial of service due to excessively large memory allocations. (CVE-2022-30522)

    A flaw was found in the mod_lua module of httpd. The data returned by the wsread function may point past     the end of the storage allocated for the buffer, resulting in information disclosure. (CVE-2022-30556)

    A flaw was found in the mod_proxy module of httpd. The server may remove the X-Forwarded-* headers from a     request based on the client-side Connection header hop-by-hop mechanism. (CVE-2022-31813)

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.

The version of Tencent Linux installed on the remote TencentOS Server 2 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0526 advisory.

    Package updates are available for TencentOS Server 2 that fix the following vulnerabilities:

    CVE-2006-20001:
    A carefully crafted If: request header can cause a memory read, or write of a single zero byte, in a pool     (heap) memory location beyond the header value sent. This could cause the process to crash.

    This issue affects Apache HTTP Server 2.4.54 and earlier.

    CVE-2020-35452:
    Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in     mod_auth_digest. There is no report of this overflow being exploitable, nor the Apache HTTP Server team     could create one, though some particular compiler and/or compilation option might make it possible, with     limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow

    CVE-2021-26690:
    Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can     cause a NULL pointer dereference and crash, leading to a possible Denial Of Service

    CVE-2022-22719:
    A carefully crafted request body can cause a read to a random memory area which could cause the process to     crash. This issue affects Apache HTTP Server 2.4.52 and earlier.

    CVE-2022-22721:
    If LimitXMLRequestBody is set to allow request bodies larger than 350MB (defaults to 1M) on 32 bit systems     an integer overflow happens which later causes out of bounds writes. This issue affects Apache HTTP Server     2.4.52 and earlier.

    CVE-2022-23943:
    Out-of-bounds Write vulnerability in mod_sed of Apache HTTP Server allows an attacker to overwrite heap     memory with possibly attacker provided data. This issue affects Apache HTTP Server 2.4 version 2.4.52 and     prior versions.

    CVE-2022-28615:
    Apache HTTP Server 2.4.53 and earlier may crash or disclose information due to a read beyond bounds in     ap_strcmp_match() when provided with an extremely large input buffer. While no code distributed with the     server can be coerced into such a call, third-party modules or lua scripts that use ap_strcmp_match() may     hypothetically be affected.

    CVE-2022-29404:
    In Apache HTTP Server 2.4.53 and earlier, a malicious request to a lua script that calls r:parsebody(0)     may cause a denial of service due to no default limit on possible input size.

    CVE-2022-30556:
    Apache HTTP Server 2.4.53 and earlier may return lengths to applications calling r:wsread() that point     past the end of the storage allocated for the buffer.

    CVE-2022-31813:
    Apache HTTP Server 2.4.53 and earlier may not send the X-Forwarded-* headers to the origin server based on     client side Connection header hop-by-hop mechanism. This may be used to bypass IP based authentication on     the origin server/application.

    CVE-2022-36760:
    Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of     Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to.  This     issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.54 and prior versions.

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

    CVE-2024-39573:
    Potential SSRF in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to cause unsafe     RewriteRules to unexpectedly setup URL's to be handled by mod_proxy.
    Users are recommended to upgrade to version 2.4.60, which fixes this issue.

    CVE-2022-26377:
    Inconsistent Interpretation of HTTP Requests (/'HTTP Request Smuggling/') vulnerability in mod_proxy_ajp     of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to.
    This issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.53 and prior versions.

Tenable has extracted the preceding description block directly from the Tencent 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 MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2022-3871:03 advisory.

    * httpd: mod_sed: Read/write beyond bounds (CVE-2022-23943)
      * httpd: Request splitting via HTTP/2 method injection and mod_proxy (CVE-2021-33193)
      * httpd: NULL pointer dereference via malformed requests (CVE-2021-34798)
      * httpd: mod_proxy_uwsgi: out-of-bounds read via a crafted request uri-path (CVE-2021-36160)
      * httpd: Out-of-bounds write in ap_escape_quotes() via malicious input (CVE-2021-39275)
      * httpd: possible NULL dereference or SSRF in forward proxy configurations (CVE-2021-44224)
      * httpd: mod_lua: Use of uninitialized value of in r:parsebody (CVE-2022-22719)
      * httpd: core: Possible buffer overflow with very large or unlimited LimitXMLRequestBody     (CVE-2022-22721)
      * httpd: mod_proxy_ajp: Possible request smuggling (CVE-2022-26377)
      * httpd: mod_lua: DoS in r:parsebody (CVE-2022-29404)
      * httpd: mod_sed: DoS vulnerability (CVE-2022-30522)
      * httpd: mod_proxy: X-Forwarded-For dropped by hop-by-hop mechanism (CVE-2022-31813)
      * httpd: out-of-bounds read via ap_rwrite() (CVE-2022-28614)
      * httpd: out-of-bounds read in ap_strcmp_match() (CVE-2022-28615)
      * httpd: mod_lua: Information disclosure with websockets (CVE-2022-30556)

Tenable has extracted the preceding description block directly from the MiracleLinux 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	Name	Product	Family	Published	Updated	Severity
165380	EulerOS Virtualization 2.9.0 : httpd (EulerOS-SA-2022-2383)	Nessus	Huawei Local Security Checks	9/23/2022	10/11/2023	critical
348840	Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: httpd (UTSA-2023-003821)	Nessus	Unity Linux Local Security Checks	9/22/2026	9/22/2026	high
163002	SUSE SLES15 Security Update : apache2 (SUSE-SU-2022:2338-1)	Nessus	SuSE Local Security Checks	7/12/2022	7/14/2023	critical
163233	Amazon Linux 2 : httpd (ALAS-2022-1812)	Nessus	Amazon Linux Local Security Checks	7/15/2022	12/11/2024	critical
167004	Amazon Linux 2022 : httpd, httpd-core, httpd-devel (ALAS2022-2022-202)	Nessus	Amazon Linux Local Security Checks	11/4/2022	12/11/2024	critical
168111	Oracle Linux 9 : httpd (ELSA-2022-8067)	Nessus	Oracle Linux Local Security Checks	11/22/2022	10/22/2024	critical
173084	Amazon Linux 2023 : httpd, httpd-core, httpd-devel (ALAS2023-2023-072)	Nessus	Amazon Linux Local Security Checks	3/21/2023	12/11/2024	critical
247826	TencentOS Server 2: httpd (TSSA-2025:0526)	Nessus	Tencent Local Security Checks	8/11/2025	12/4/2025	critical
292410	MiracleLinux 7 : httpd24-httpd-2.4.34-23.el7.5 (AXSA:2022-3871:03)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	critical

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