Security Bulletin: Multiple vulnerabilities in Gnu binutils affect PowerKVM

Summary

PowerKVM is affected by several vulnerabilities in Gnu binutils. These vulnerabilities are now fixed.

Vulnerability Details

CVEID: CVE-2014-8737**
DESCRIPTION:** GNU Binutils could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing directory traversal sequences to view arbitrary files on the system.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/98484 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVEID: CVE-2014-8738**
DESCRIPTION:** GNU Binutils could allow a local attacker to obtain sensitive information, caused by an error in the archive.c file when processing a specially-crafted archive file. A local attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base Score: 2.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/99271 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N)

CVEID: CVE-2014-8484**
DESCRIPTION:** GNU Binutils is vulnerable to a denial of service, caused by an error in the srec_scan function in bfd/srec. A remote attacker could exploit this vulnerability using a small S-record to cause a denial of service.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/97759 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVEID: CVE-2014-8485**
DESCRIPTION:** GNU Binutils could allow a remote attacker to execute arbitrary code on the system, caused by the lack of range checking in libbfd. An attacker could exploit this vulnerability using running strings to execute arbitrary code on the system or cause the system to crash.
CVSS Base Score: 6.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/97770 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVEID: CVE-2014-8501**
DESCRIPTION:** GNU Binutils is vulnerable to a denial of service, caused by an error in peXXigen.c. A remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/98420 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVEID: CVE-2014-8502**
DESCRIPTION:** GNU Binutils is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the objdump-pe-crasher2. By sending an overly long string, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/98483 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVEID: CVE-2014-8503**
DESCRIPTION:** GNU Binutils is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by ihex.c. By sending an overly long string, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/98482 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVEID: CVE-2014-8504**
DESCRIPTION:** GNU Binutils is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by srec.c. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/98313 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P)

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 service build 3 or later.

For version 2.1, the fix is made available via Fix Central (https://ibm.biz/BdEnT8) in 2.1.1 Build 65.6 and all later 2.1.1 SP3 service builds and 2.1.1 service packs. 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

v2.1 customers can work around the problem by upgrading to the fixed release of v3.1