IBM Support

Security Bulletin: Vulnerabilities in libuser affect Power Hardware Management Console (CVE-2015-3245 CVE-2015-3246)

Created by Rejy V Sasidaran on
Published URL:
https://www.ibm.com/support/pages/node/666531
666531

Security Bulletin


Summary

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

Vulnerability Details


CVEID: CVE-2015-3245
DESCRIPTION: libuser is vulnerable to a denial of service, caused by the failure to properly filter out newline characters by the chfn() function within the userhelper utility. A local authenticated attacker could exploit this vulnerability to inject newline characters into the /etc/passwd file and cause a denial of service.
CVSS Base Score: 4.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/105022 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2015-3246
DESCRIPTION: libuser could allow a local authenticated attacker to gain elevated privileges on the system, caused by the improper handling of the /etc/passwd file. An attacker could exploit this vulnerability to gain root privileges on the system.
CVSS Base Score: 7.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/105023 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Power HMC V8.1.0.0
Power HMC V8.2.0.0
Power HMC V8.3.0.0

Remediation/Fixes


The following fixes are available on IBM Fix Central

Product
VRMF
APAR
Remediation/Fix
Power HMC
V8.8.1.0 SP2
MB03967
Power HMC
V8.8.2.0 SP2
MB03968
Power HMC
V8.8.3.0 SP1
MB03969

Workarounds and Mitigations

None

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References

Complete CVSS v2 Guide
On-line Calculator v2

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

[{"Product":{"code":"SSB6AA","label":"Power System Hardware Management Console Physical Appliance"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":"HMC","Platform":[{"code":"PF016","label":"Linux"}],"Version":"Version Independent","Edition":"Enterprise","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]

Document Information

Modified date:
22 September 2021

UID

nas8N1020961

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