According to its banner, the version of Apache running on the remote host is 2.4.x prior to 2.4.34. It is, therefore, affected by the following vulnerabilities:

 - By specially crafting HTTP/2 requests, workers would be allocated 60 seconds longer than necessary, leading to worker exhaustion and a denial of service. (CVE-2018-1333)

 - By specially crafting HTTP requests, the mod_md challenge handler would dereference a NULL pointer and cause the child process to segfault. This could be used to DoS the server. (CVE-2018-8011)

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

This update for apache2 fixes the following issues :

The following security vulnerabilities were fixed :

  - CVE-2018-1333: Fixed a worker exhaustion that could have     lead to a denial of service via specially crafted HTTP/2     requests (bsc#1101689).

  - CVE-2018-8011: Fixed a NULL pointer dereference in     mod_md, which could have lead to a denial of service via     specially crafted HTTP requests (bsc#1101688). Note: We     are currently not shipping this modules, since it is     still considered experimental, but we might start to     ship it with future releases.

This update was imported from the SUSE:SLE-15:Update update project.

According to its banner, the version of Apache running on the remote host is 2.4.x prior to 2.4.34. It is, therefore, affected by the following vulnerabilities:

  - By specially crafting HTTP/2 requests, workers would be     allocated 60 seconds longer than necessary, leading to     worker exhaustion and a denial of service. (CVE-2018-1333)

  - By specially crafting HTTP requests, the mod_md challenge     handler would dereference a NULL pointer and cause the     child process to segfault. This could be used to DoS the     server. (CVE-2018-8011)

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

By specially crafting HTTP requests, the mod_md challenge handler would dereference a NULL pointer and cause the child process to segfault. This could be used to DoS the server. Fixed in Apache HTTP Server 2.4.34 (Affected 2.4.33). (CVE-2018-8011)

This update for apache2 fixes the following issues: The following security vulnerabilities were fixed :

  - CVE-2018-1333: Fixed a worker exhaustion that could have     lead to a denial of service via specially crafted HTTP/2     requests (bsc#1101689).

  - CVE-2018-8011: Fixed a NULL pointer dereference in     mod_md, which could have lead to a denial of service via     specially crafted HTTP requests (bsc#1101688). Note: We     are currently not shipping this modules, since it is     still considered experimental, but we might start to     ship it with future releases.

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

The Apache project reports :

- DoS for HTTP/2 connections by crafted requests (CVE-2018-1333). By specially crafting HTTP/2 requests, workers would be allocated 60 seconds longer than necessary, leading to worker exhaustion and a denial of service. (low)

- mod_md, DoS via Coredumps on specially crafted requests (CVE-2018-8011). By specially crafting HTTP requests, the mod_md challenge handler would dereference a NULL pointer and cause the child process to segfault. This could be used to DoS the server. (moderate)

New httpd packages are available for Slackware 14.0, 14.1, 14.2, and
-current to fix security issues.

By specially crafting HTTP requests, the mod_md challenge handler would dereference a NULL pointer and cause the child process to segfault. This could be used to DoS the server. Fixed in Apache HTTP Server 2.4.34 (Affected 2.4.33).(CVE-2018-8011)

This update includes the latest upstream release, 

**httpd 2.4.34**, with multiple bug fixes and enhancements. See http://www.apache.org/dist/httpd/CHANGES_2.4.34 for more information on the changes in this version.

A security vulnerability is addressed in this update :

  - `mod_md`: DoS via Coredumps on specially crafted     requests (CVE-2018-8011) The following changes are also     included in this update :

  - The post-transaction scriptlet to restart     `httpd.service` no longer blocks waiting for the restart     to complete.

  - `mod_ssl` now supports loading private keys (and     associated certificates) from a PKCS#11 provider. Use a     `pkcs11:` URI in the `SSLCertificateKeyFile` (and     optionally `SSLCertificateFile`) directive(s).

  - An example Lua-based `server-status.conf` is packaged in     the docdir 

  - `httpd` now Obsoletes `mod_proxy_uwsgi` (RHBZ#1599113)

  - `mod_systemd` now logs listening ports at startup

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

ID	Name	Product	Family	Published	Updated	Severity
98915	Apache 2.4.x < 2.4.34 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	1/31/2019	3/14/2023	high
112006	openSUSE Security Update : apache2 (openSUSE-2018-907)	Nessus	SuSE Local Security Checks	8/20/2018	1/19/2021	high
111788	Apache 2.4.x < 2.4.34 Multiple Vulnerabilities	Nessus	Web Servers	8/16/2018	4/11/2022	high
112087	Amazon Linux 2 : httpd (ALAS-2018-1062)	Nessus	Amazon Linux Local Security Checks	8/24/2018	9/17/2018	high
120085	SUSE SLES15 Security Update : apache2 (SUSE-SU-2018:2424-1)	Nessus	SuSE Local Security Checks	1/2/2019	3/18/2020	high
111177	FreeBSD : Apache httpd -- multiple vulnerabilities (8b1a50ab-8a8e-11e8-add2-b499baebfeaf)	Nessus	FreeBSD Local Security Checks	7/20/2018	11/10/2018	high
111185	Slackware 14.0 / 14.1 / 14.2 / current : httpd (SSA:2018-199-01)	Nessus	Slackware Local Security Checks	7/20/2018	10/4/2018	high
112090	Amazon Linux AMI : httpd24 (ALAS-2018-1062)	Nessus	Amazon Linux Local Security Checks	8/24/2018	9/17/2018	high
111401	Fedora 27 : httpd (2018-c3dc008c54)	Nessus	Fedora Local Security Checks	7/30/2018	1/6/2021	high
120394	Fedora 28 : httpd (2018-49d3b42425)	Nessus	Fedora Local Security Checks	1/3/2019	1/6/2021	high
123274	openSUSE Security Update : apache2 (openSUSE-2019-632)	Nessus	SuSE Local Security Checks	3/27/2019	1/19/2021	high

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