Security Bulletin: Multiple vulnerabilities in GNU C Library (glibc), OpenSSL and NTP affect IBM Flex System Chassis Management Module (CMM)

Vulnerability Details

Summary

Vulnerabilities in GNU C Library (glibc), OpenSSL and NTP affect IBM Flex System Chassis Management Module. IBM Flex System Chassis Management Module has addressed the CVEs listed below.

Vulnerability Details

CVE-ID: CVE-2014-7817

Description: GNU C Library (glibc) could allow a local attacker to execute arbitrary commands on the system, caused by an error in the wordexp() function. An attacker could exploit this vulnerability to execute arbitrary commands on the system.

CVSS Base Score: 4.6
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/98852 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P)

CVE-ID: CVE-2014-9402

Description: glibc is vulnerable to a denial of service, caused by an error in the getanswer_r() function. If the DNS backend is activated, a remote attacker could exploit this vulnerability to cause the application to enter into an infinite loop.

CVSS Base Score: 4.3
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/99289 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVE-ID: CVE-2015-1472

Description: GNU glibc is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by stdio-common/vfscanf.c. By sending an overly long string, a local attacker could overflow a buffer and execute arbitrary code on the system or cause a denial of service.

CVSS Base Score: 4.6
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/100635 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P)

CVE-ID: CVE-2013-7423

Description: GNU glibc could allow a local attacker to obtain sensitive information, caused by the writing of DNS queries to random file descriptors under high load by the getaddrinfo() function. An attacker could exploit this vulnerability to obtain sensitive information.

CVSS Base Score: 1.2
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/100647 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:H/Au:N/C:P/I:N/A:N)

CVE-ID: CVE-2015-0287

Description: OpenSSL is vulnerable to a denial of service, caused by an error related to the reuse of a structure in ASN.1 parsing. An attacker could exploit this vulnerability using an invalid write to corrupt memory and cause a denial of service.

CVSS Base Score: 5
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/101668 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVE-ID: CVE-2015-0288

Description: OpenSSL is vulnerable to a denial of service, caused by an error in the X509_to_X509_REQ function. An attacker could exploit this vulnerability to trigger a NULL pointer dereference.

CVSS Base Score: 5
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/101675 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVE-ID: CVE-2015-0209

Description: OpenSSL could allow a remote attacker to execute arbitrary code on the system, caused by a use-after-free error in the d2i_ECPrivateKey or EVP_PKCS82PKEY function. An attacker could exploit this vulnerability using a malformed Elliptic Curve (EC) private-key file to corrupt memory and execute arbitrary code on the system and cause a denial of service.

CVSS Base Score: 6.8
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/101674 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVE-ID: CVE-2015-0286

Description: OpenSSL is vulnerable to a denial of service, caused by an error in the ASN1_TYPE_cmp function when attempting to compare ASN.1 boolean types. An attacker could exploit this vulnerability to crash any certificate verification operation and cause a denial of service.

CVSS Base Score: 5
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/101666 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVE-ID: CVE-2015-0289

Description: OpenSSL is vulnerable to a denial of service, caused by the failure to properly handle missing outer ContentInfo by the PKCS#7 parsing code. An attacker could exploit this vulnerability using a malformed ASN.1-encoded PKCS#7 blob to trigger a NULL pointer dereference.

CVSS Base Score: 5
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/101669 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVE-ID: CVE-2015-0292

Description: OpenSSL could allow a remote attacker to execute arbitrary code on the system, caused by an error when processing base64 encoded data. An attacker could exploit this vulnerability using specially-crafted base 64 data to corrupt memory and execute arbitrary code on the system and cause a denial of service.

CVSS Base Score: 7.5
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/101670 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVE-ID: CVE-2015-0293

Description: OpenSSL is vulnerable to a denial of service. By sending a specially-crafted SSLv2 CLIENT-MASTER-KEY message, a remote attacker could exploit this vulnerability to trigger an assertion.

CVSS Base Score: 5
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/101671 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVE-ID: CVE-2014-9293

Description: Network Time Protocol (NTP) Project NTP daemon (ntpd) could provide weaker than expected security, caused by the improper generation of a key by the config_auth function when an auth key is not configured. A remote attacker could exploit this vulnerability using brute force techniques to guess the generated key.

CVSS Base Score: 5
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/99576 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVE-ID: CVE-2014-9294

Description: Network Time Protocol (NTP) Project NTP daemon (ntpd) could provide weaker than expected security, caused by the use of a weak RNG seed by ntp-keygen.c. A remote attacker could exploit this vulnerability using brute force techniques to defeat cryptographic protection mechanisms.

CVSS Base Score: 5
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/99577 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVE-ID: CVE-2014-9297

Description: Network Time Protocol (NTP) Project NTP daemon (ntpd) could allow a remote attacker to conduct spoofing attacks, caused by insufficient entropy in PRNG. An attacker could exploit this vulnerability to spoof the IPv6 address ::1 to bypass ACLs and launch further attacks on the system.

CVSS Base Score: 5
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/100004 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVE-ID: CVE-2014-9298

Description: Network Time Protocol (NTP) Project NTP daemon (ntpd) could allow a remote attacker to obtain sensitive information, caused by the improper validation of the length value in extension field pointers. An attacker could exploit this vulnerability to obtain sensitive information.

CVSS Base Score: 5
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/100005 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVE-ID: CVE-2015-1799

Description: Network Time Protocol (NTP) Project NTP daemon (ntpd) is vulnerable to a denial of service, caused by an error when using symmetric key authentication. By sending specially-crafted packets to both peering hosts, an attacker could exploit this vulnerability to prevent synchronization.

CVSS Base Score: 5.4
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/102052 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:A/AC:M/Au:N/C:P/I:P/A:P)

CVE-ID: CVE-2015-3405

Description: Network Time Protocol (NTP) could allow a remote attacker to conduct spoofing attacks, caused by the generation of MD5 symmetric keys on big-endian systems by the ntp-keygen utility. An attacker could exploit this vulnerability using the generated MD5 keys to spoof an NTP client or server.

CVSS Base Score: 5
CVSS Temporal Score: See http://exchange.xforce.ibmcloud.com/vulnerabilities/104387 for current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N)

Affected products and versions

Remediation/Fixes

Firmware fix versions are available on Fix Central: http://www.ibm.com/support/fixcentral/

You should verify applying the fix does not cause any compatibility issues.

Workarounds and Mitigations

None.

References

• Complete CVSS V2 Guide
• On-line Calculator V2

Related Information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

None.

Change History
23 November 2015: Original Version Published

* 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.