Security Bulletin: Vulnerabilities in the Apache HTTP Server affect PowerKVM (CVE-2015-3183,CVE-2015-3185)

Summary

PowerKVM is affected by vulnerabilities in the Apache HTTP Server (httpd). These vulnerabilities are now fixed.

Vulnerability Details

CVEID: CVE-2015-3183**
DESCRIPTION:** Apache HTTP Server is vulnerable to HTTP request smuggling, caused by a chunk header parsing flaw in the apr_brigade_flatten() function. By sending a specially-crafted request in a malformed chunked header to the Apache HTTP server, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.
CVSS Base Score: 6.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104844 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

CVEID: CVE-2015-3185**
DESCRIPTION:** An unspecified error in Apache HTTP Server within the ap_some_auth_required() function has an unknown impact and attack vector.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104845 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

PowerKVM 2.1

Remediation/Fixes

Customers can update PowerKVM systems by using “yum update”.

This vulnerability does not exist in PowerKVM 3.1.

For version 2.1, see PowerKVM 2.1.1.3-65. Update 9 at https://ibm.biz/BdEnT8 and all later 2.1.1 service updates. Customers running v2.1 are, in any case, encouraged to upgrade to v3.1.

For v2.1 systems currently running fix levels of PowerKVM prior to 2.1.1, please see <http://download4.boulder.ibm.com/sar/CMA/OSA/05e4c/0/README&gt; for prerequisite fixes and instructions.