CVE-2018-11763

In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol.

In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol.

In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol.

mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all (CVE-2017-15710).

A regular expression could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. leading to corruption of uploaded files (CVE-2017-15715).

When mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a "Session" header leading to unexpected behavior (CVE-2018-1283).

Due to an out of bound access after a size limit being reached by reading the HTTP header, a specially crafted request could lead to remote denial of service (CVE-2018-1301).

When an HTTP/2 stream was destroyed after being handled, it could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerability hard to trigger in usual configurations, the reporter and the team could not reproduce it outside debug builds, so it is classified as low risk (CVE-2018-1302).

A specially crafted HTTP request header could lead to crash due to an out of bound read while preparing data to be cached in shared memory (CVE-2018-1303).

When generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo- random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection (CVE-2018-1312).

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

In Apache HTTP Server by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections (CVE-2018-11763).

The apache package has been updated to version 2.4.37, fixing these issues and several other bugs. See the upstream CHANGES files for details.

This update for virtualbox to version 5.2.24 fixes the following issues:

Multiple security issues fixed:

CVE-2019-2500, CVE-2019-2524, CVE-2019-2552, CVE-2018-3309, CVE-2019-2520 CVE-2019-2521, CVE-2019-2522, CVE-2019-2523, CVE-2019-2526, CVE-2019-2548 CVE-2018-11763, CVE-2019-2511, CVE-2019-2508, CVE-2019-2509, CVE-2019-2527 CVE-2019-2450, CVE-2019-2451, CVE-2019-2555, CVE-2019-2554, CVE-2019-2556 CVE-2018-11784, CVE-2018-0734, CVE-2019-2525, CVE-2019-2446, CVE-2019-2448 CVE-2019-2501, CVE-2019-2504, CVE-2019-2505, CVE-2019-2506, and CVE-2019-2553 (bsc#1122212).

Other issues fixed:

• Linux Additions: fix for building vboxvideo on EL 7.6 standard kernel, contributed by Robert Conde
• USB: fixed a problem causing failures attaching SuperSpeed devices which report USB version 3.1 (rather than 3.0) on Windows hosts
• Audio: added support for surround speaker setups used by Windows 10 Build 1809
• Linux hosts: fixed conflict between Debian and Oracle build desktop files
• Linux guests: fixed building drivers on SLES 12.4
• Linux guests: fixed building shared folder driver with older kernels

This update for virtualbox to version 6.0.10 fixes the following issues:

Security issues fixed:

• CVE-2019-2859 CVE-2019-2867 CVE-2019-2866 CVE-2019-2864 CVE-2019-2865 CVE-2019-1543 CVE-2019-2863 CVE-2019-2848 CVE-2019-2877 CVE-2019-2873 CVE-2019-2874 CVE-2019-2875 CVE-2019-2876 CVE-2019-2850 (boo#1141801)

These are all security issues fixed in the python3-virtualbox-6.1.26-3.2 package on the GA media of openSUSE Tumbleweed.

This update for apache2 fixes the following issues:

Security issues fixed:

• CVE-2018-11763: In Apache HTTP Server by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. (bsc#1109961)

Bug fixes:

• consider also patterns in APACHE_CONF_INCLUDE_DIRS as documentation says (patch Juergen Gleiss)

This update for apache2 fixes the following issues:

Security issues fixed:

• CVE-2018-11763: In Apache HTTP Server by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. (bsc#1109961)

This update for apache2 fixes the following issues:

Security issues fixed:

• CVE-2018-11763: In Apache HTTP Server by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. (bsc#1109961)

Robert Swiecki discovered that the Apache HTTP Server HTTP/2 module incorrectly destroyed certain streams. A remote attacker could possibly use this issue to cause the server to crash, leading to a denial of service. (CVE-2018-1302)

Craig Young discovered that the Apache HTTP Server HTTP/2 module incorrectly handled certain requests. A remote attacker could possibly use this issue to cause the server to consume resources, leading to a denial of service. (CVE-2018-1333)

Gal Goldshtein discovered that the Apache HTTP Server HTTP/2 module incorrectly handled large SETTINGS frames. A remote attacker could possibly use this issue to cause the server to consume resources, leading to a denial of service. (CVE-2018-11763)