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ibmIBM15979D359BB848CC1BFF0D3C139D27D860BC5601AF65EB49057BAC8F1882FE0C
HistoryJun 18, 2018 - 1:35 a.m.

Security Bulletin: Vulnerabilities in Ghostscript affect PowerKVM

2018-06-1801:35:03
www.ibm.com
8

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

Summary

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

Vulnerability Details

CVEID: CVE-2013-5653**
DESCRIPTION:** Ghostscript could allow a remote attacker to obtain sensitive information, caused by the failure to honor the -dSAFER option by the getenv and filenameforall function. A remote attacker could exploit this vulnerability using a specially-crafted document to read environment variable and list directory from the system.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/121090 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVEID: CVE-2016-7977**
DESCRIPTION:** Ghostscript could allow a remote attacker to obtain sensitive information, caused by the failure to check PermitFileReading array when using dSAFER sandbox. An attacker could exploit this vulnerability using .libfile to access arbitrary files on the file system.
CVSS Base Score: 6.2
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/117922 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2016-7978**
DESCRIPTION:** Ghostscript could allow a remote attacker to execute arbitrary commands on the system, caused by a reference leak in .setdevice when using dSAFER sandbox. An attacker could exploit this vulnerability to trigger a use-after-free and execute arbitrary code on the system.
CVSS Base Score: 8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/117923 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L)

CVEID: CVE-2016-7979**
DESCRIPTION:** Ghostscript could allow a remote attacker to execute arbitrary commands on the system, caused by a type confusion in .initialize_dsc_parser when using dSAFER sandbox. An attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base Score: 8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/117924 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L)

CVEID: CVE-2016-8602**
DESCRIPTION:** Ghostscript could allow a remote attacker to execute arbitrary commands on the system, caused by a type confusion error in .sethalftone5 when using dSAFER sandbox. An attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base Score: 8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/117925 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/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. This issue is addressed as of 3.1.0.2 update 5 or later.

For version 2.1, see https://ibm.biz/BdEnT8. This issue is addressed as of PowerKVM 2.1.1.3-65 update 15 or later. 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

CPENameOperatorVersion
powerkvmeq2.1
powerkvmeq3.1

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

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