CVE-2015-3183

The chunked transfer coding implementation in the Apache HTTP Server before 2.4.14 does not properly parse chunk headers, which allows remote attackers to conduct HTTP request smuggling attacks via a crafted request, related to mishandling of large chunk-size values and invalid chunk-extension characters in modules/http/http_filters.c.

The chunked transfer coding implementation in the Apache HTTP Server before 2.4.14 does not properly parse chunk headers, which allows remote attackers to conduct HTTP request smuggling attacks via a crafted request, related to mishandling of large chunk-size values and invalid chunk-extension characters in modules/http/http_filters.c.

The chunked transfer coding implementation in the Apache HTTP Server before 2.4.14 does not properly parse chunk headers, which allows remote attackers to conduct HTTP request smuggling attacks via a crafted request, related to mishandling of large chunk-size values and invalid chunk-extension characters in modules/http/http_filters.c (CVE-2015-3183).

The ap_some_auth_required function in server/request.c in the Apache HTTP Server 2.4.x before 2.4.14 does not consider that a Require directive may be associated with an authorization setting rather than an authentication setting, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging the presence of a module that relies on the 2.2 API behavior (CVE-2015-3185).

The Apache2 webserver was updated to fix several issues:

Security issues fixed:

• The chunked transfer coding implementation in the Apache HTTP Server did not properly parse chunk headers, which allowed remote attackers to conduct HTTP request smuggling attacks via a crafted request, related to mishandling of large chunk-size values and invalid chunk-extension characters in modules/http/http_filters.c. [bsc#938728, CVE-2015-3183]
• The LOGJAM security issue was addressed by: [bnc#931723 CVE-2015-4000]
  • changing the SSLCipherSuite cipherstring to disable export cipher suites and deploy Ephemeral Elliptic-Curve Diffie-Hellman (ECDHE) ciphers.
  • Adjust 'gensslcert' script to generate a strong and unique Diffie Hellman Group and append it to the server certificate file.
• The ap_some_auth_required function in server/request.c in the Apache HTTP Server 2.4.x did not consider that a Require directive may be associated with an authorization setting rather than an authentication setting, which allowed remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging the presence of a module that relies on the 2.2 API behavior. [bnc#938723 bnc#939516 CVE-2015-3185]
• Tomcat mod_jk information leak due to incorrect JkMount/JkUnmount directives processing [bnc#927845 CVE-2014-8111]

Other bugs fixed:

• Now provides a suse_maintenance_mmn_# [bnc#915666].
• Hardcoded modules in the %files [bnc#444878].
• Fixed the IfModule directive around SSLSessionCache [bnc#911159].
• allow only TCP ports in Yast2 firewall files [bnc#931002]
• fixed a regression when some LDAP searches or comparisons might be done with the wrong credentials when a backend connection is reused [bnc#930228]
• Fixed split-logfile2 script [bnc#869790]
• remove the changed MODULE_MAGIC_NUMBER_MINOR from which confuses modules the way that they expect functionality that our apache does not provide [bnc#915666]
• gensslcert: CN now defaults to hostname -f [bnc#949766], fix help [bnc#949771]

Apache was updated to fix one security vulnerability and two bugs.

Following security issue was fixed.

• Fix the chunked transfer coding implementation in the Apache (bsc#938728, CVE-2015-3183)

Bugs fixed:

• add SSLSessionTickets directive (bsc#941676)
• hardcode modules %files (bsc#444878)
• only enable the port 443 for TCP protocol, not UDP. (bsc#931002)

Apache was updated to fix one security vulnerability and two bugs.

Following security issue was fixed.

• Fix the chunked transfer coding implementation in the Apache (bsc#938728, CVE-2015-3183)

Bugs fixed:

• add SSLSessionTickets directive (bsc#941676)
• hardcode modules %files (bsc#444878)
• only enable the port 443 for TCP protocol, not UDP. (bsc#931002)

The chunked transfer coding implementation in the Apache HTTP Server before 2.4.14 does not properly parse chunk headers, which allows remote attackers to conduct HTTP request smuggling attacks via a crafted request, related to mishandling of large chunk-size values and invalid chunk-extension characters in modules/http/http_filters.c.

It was discovered that the Apache HTTP Server incorrectly parsed chunk headers. A remote attacker could possibly use this issue to perform HTTP request smuggling attacks. (CVE-2015-3183)

It was discovered that the Apache HTTP Server incorrectly handled the ap_some_auth_required API. A remote attacker could possibly use this issue to bypass intended access restrictions. This issue only affected Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-3185)