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Security Bulletin:Vulnerabilities in wpa_supplicant may affect PowerKVM (CVE-2015-1863 and CVE-2015-4142)

Security Bulletin


Summary

Vulnerabilities in wpa_supplicant may affect PowerKVM (CVE-2015-1863 and CVE-2015-4142). These vulnerability are now fixed. Note that although the code exists in PowerKVM, the functionality is not enabled or supported as shipped.

Vulnerability Details

CVEID: CVE-2015-1863
DESCRIPTION:
wpa_supplicant is vulnerable to a buffer overflow, caused by improper bounds checking of SSID information from management frames. By sending a malicious management frame, a remote attacker from within Wi-Fi radio range could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 5.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/102587 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:A/AC:L/Au:N/C:P/I:P/A:P)

CVEID: CVE-2015-4142
DESCRIPTION:
W1.fi hostapd and wpa_supplicant are vulnerable to an integer underflow, caused by a failure to properly verify specific bytes by the WMM Action frame parser in AP mode. By sending specially crafted frames to a victim, a remote attacker can exploit this vulnerability to force a buffer read overflow and cause a denial of service condition.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/105113 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P)

Affected Products and Versions

PowerKVM 2.1

Remediation/Fixes

Fix is made available via Fix Central (https://ibm.biz/BdEnT8) in 2.1.1 Build 65.1 and all later 2.1.1 SP3 service builds and 2.1.1 fix packs. For 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 for prerequisite fixes and instructions. Customers can also update from 2.1.1 (GA and later levels) by using "yum update"

Workarounds and Mitigations

none

Get Notified about Future Security Bulletins

References

Off

Change History

19 Oct 2015 - Initial Version

*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.

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Document Information

Modified date:
17 June 2018

UID

isg3T1022832