Security Bulletin: Vulnerabilities in openssh affect Power Hardware Management Console (CVE-2016-0777, CVE-2016-0778)

Summary

OpenSSH is used by Power Hardware Management Console (HMC). HMC has addressed the applicable CVEs.

Vulnerability Details

CVEID: CVE-2016-0777**
DESCRIPTION:** OpenSSH could allow a remote attacker to obtain sensitive information, caused by a client information leak from using the roaming connection feature. By persuading a victim to connect to a malicious server, an attacker could exploit this vulnerability to retrieve private cryptographic keys or other sensitive information.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109635 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)

CVEID: CVE-2016-0778**
DESCRIPTION:** OpenSSH is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the packet_write_wait() and ssh_packet_write_wait() API functions when two non-default options: a ProxyCommand and either ForwardAgent or ForwardX11are used. By persuading a victim to connect to a malicious server, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109636 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L)

Affected Products and Versions

Power HMC V7.3.0.0
Power HMC V7.9.0.0
Power HMC V8.1.0.0
Power HMC V8.2.0.0
Power HMC V8.3.0.0
Power HMC V8.4.0.0

Remediation/Fixes

Product

|

VRMF

|

APAR

|

Remediation/Fix

—|—|—|—

Power HMC

|

V7.7.3.0 SP7

|

MB03733

|

Apply eFix MH01604

Power HMC

|

V7.7.9.0 SP3

|

MB03737

|

Apply eFix MH01605

Power HMC

|

V8.8.1.0 SP3

|

MB03738

|

Apply eFix MH01606

Power HMC

|

V8.8.2.0 SP2

|

MB03739

|

Apply eFix MH01607

Power HMC

|

V8.8.3.0 SP1

|

MB03744

|

Apply eFix MH01608

Power HMC

|

V8.8.4.0

|

MB03746

|

Apply eFix MH01609

Workarounds and Mitigations

None