Security Bulletin: Vulnerabilities in git affect PowerKVM (CVE-2016-2315, CVE-2016-2324)

Summary

PowerKVM is affected by vulnerabilities in git. These vulnerabilities are now fixed.

Vulnerability Details

CVEID: CVE-2016-2315**
DESCRIPTION:** GIT is vulnerable to a heap-based buffer overflow, caused by improper bounds checking. By pushing a specially-crafted repository, a remote authenticated attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111524 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2016-2324**
DESCRIPTION:** GIT could allow a remote authenticated attacker to execute arbitrary code on the system. By pushing a specially-crafted repository, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111523 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

PowerKVM 2.1 and PowerKVM 3.1

Remediation/Fixes

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

Fix images are made available via Fix Central. For version 3.1, see https://ibm.biz/BdHggw for 3.1.0.1 update 1 or later.

For version 2.1, see PowerKVM 2.1.1.3-65.8 Update 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.