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Security Bulletin: Vulnerabilities in cURL affect PowerKVM

Security Bulletin


Summary

PowerKVM is affected by vulnerabilities in cURL/libcURL. IBM has now addressed these vulnerabilities.

Vulnerability Details

CVEID: CVE-2016-5419
DESCRIPTION:
cURL/libcURL could allow a remote attacker to bypass security restrictions, caused by the failure to check the TLS connection server certificates. By sending a specially-crafted request, an attacker could exploit this vulnerability to bypass access restrictions.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/115804 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID: CVE-2016-5420
DESCRIPTION:
cURL/libcURL could allow a remote attacker to bypass security restrictions, caused by the failure to check the TLS connection server certificates. By sending a specially-crafted request, an attacker could exploit this vulnerability to bypass access restrictions.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/115805 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID: CVE-2016-7141
DESCRIPTION:
cURL/libcURL client certificates could allow a remote attacker to bypass security restrictions, caused by an implementation error of the NSS backend in libcurl. An attacker could exploit this vulnerability to incorrectly re-use client certificates from file on a subsequent TLS connection if no certificate is set for the subsequent connection.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/117044 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

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 4 or later.

For version 2.1, see https://ibm.biz/BdEnT8. This issue is addressed as of PowerKVM 2.1.1.3-65 update 14 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 for prerequisite fixes and instructions.

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Change History

3 Jan 2017 - 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

isg3T1024773