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Security Bulletin: Vulnerabilities in Apache HTTPD affect PowerKVM

Security Bulletin


Summary

PowerKVM is affected by vulnerabilities in Apache HTTPD. IBM has now addressed these vulnerabilities.

Vulnerability Details

CVEID: CVE-2017-9788
DESCRIPTION:
Apache HTTPD is vulnerable to a denial of service, caused by the failure to properly initialize memory used to process ''Digest'' type HTTP Authorization headers by the mod_auth_digest component. By sending a specially crafted request, an attacker could exploit this vulnerability to obtain sensitive information or cause a segmentation fault.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/128482 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)

CVEID: CVE-2017-7679
DESCRIPTION:
Apache HTTPD could allow a remote attacker to obtain sensitive information, caused by a buffer overread in mod_mime. By sending a specially crafted Content-Type response header, a remote attacker could exploit this vulnerability to read one byte past the end of a buffer.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/127420 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2017-7668
DESCRIPTION:
Apache HTTPD is vulnerable to a denial of service, caused by a buffer overread in the ap_find_token() function. By sending a specially crafted sequence of request headers, a remote attacker could exploit this vulnerability to cause a segmentation fault.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/127419 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:N/A:L)

CVEID: CVE-2017-3169
DESCRIPTION:
Apache HTTPD is vulnerable to a denial of service, caused by a NULL pointer dereference in mod_ssl. By sending a specially crafted HTTP request to an HTTPS port, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/127417 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:N/A:L)

CVEID: CVE-2017-3167
DESCRIPTION:
Apache HTTPD could allow a remote attacker to bypass security restrictions, caused by the use of the ap_get_basic_auth_pw() function by third-party modules outside of the authentication phase. A remote attacker could exploit this vulnerability to bypass authentication requirements.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/127416 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 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 starting with v3.1.0.2 update 10.



For version 2.1, see https://ibm.biz/BdEnT8. This issue is addressed starting with PowerKVM 2.1.1.3-65 update 19. 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

18 Septembert 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

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

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Document Information

Modified date:
17 June 2018

UID

isg3T1025773