Security Bulletin: Vulnerabilities in Spice affect PowerKVM

Summary

PowerKVM is affected by vulnerabilities in Spice. IBM has now addressed these vulnerabilities.

Vulnerability Details

CVEID: CVE-2016-9577**
DESCRIPTION:** Spice is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by main_channel_alloc_msg_rcv_buf function. By sending specially-crafted messages, an authenticated remote attacker could overflow a buffer and cause the application to crash or possible execute arbitrary code on the system.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121695 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2016-9578**
DESCRIPTION:** Spice is vulnerable to a denial of service, caused by the improper validation of messages. By sending a specially-crafted message, an remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121696 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

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&gt;. This issue is addressed as of 3.1.0.2 update 7 or later.

Version 2.1 is unaffected.

Workarounds and Mitigations

None