Security Bulletin: Vulnerabilities in icoutils affect PowerKVM

Summary

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

Vulnerability Details

CVEID: CVE-2017-5208**
DESCRIPTION:** icoutils could allow a local attacker to execute arbitrary code on the system, caused by an integer overflow in the wrestool program. By creating a specially crafted executable and reading it via wrestool, an attacker could exploit this vulnerability to corrupt memory and execute arbitrary code on the system.
CVSS Base Score: 8.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/125733 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L)

CVEID: CVE-2017-5332**
DESCRIPTION:** icoutils is vulnerable to a denial of service, caused by an error in extract.c. By parsing a specially crafted file using wrestool, a local attacker could exploit this vulnerability to cause the application to crash.
CVSS Base Score: 2.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/125734 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2017-5333**
DESCRIPTION:** icoutils could allow a local attacker to execute arbitrary code on the system, caused by an integer overflow in extract.c within the wrestool program. By creating a specially crafted executable and reading it via wrestool, an attacker could exploit this vulnerability to corrupt memory and execute arbitrary code on the system.
CVSS Base Score: 8.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/125735 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L)

CVEID: CVE-2017-6009**
DESCRIPTION:** icoutils is vulnerable to a buffer overflow, caused by an error in the decode_ne_resource_id function in the restable.c. An attacker could exploit this vulnerability to execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/122147 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2017-6010**
DESCRIPTION:** icoutils is vulnerable to a denial of service, caused by a buffer overflow flaw in the extract_icons function in extract.c. By persuading a victim to open a specially-crafted ico file, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base Score: 4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/122146 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2017-6011**
DESCRIPTION:** Artifex Software MuJS is vulnerable to a buffer overflow, caused by an out-of-bounds read issue by the simple_vec function in extract.c. An attacker could exploit this vulnerability to execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/122145 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

PowerKVM 2.1 and 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. This issue is addressed starting with v3.1.0.2 update 8.

For version 2.1, see https://ibm.biz/BdEnT8. This issue is addressed starting with PowerKVM 2.1.1.3-65 update 17. 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.

Workarounds and Mitigations

none