Security Bulletin: Security Vulnerabilities in OpenSSL, glibc, gcc, Net-SNMP, and OpenSSH affect IBM Security Proventia Network Enterprise Scanner

Summary

OpenSSL vulnerabilities were disclosed on December 3, 2015 by the OpenSSL Project. OpenSSL is used by IBM Security Proventia Network Enterprise Scanner. This bulletin addresses the applicable CVEs as well as other CVEs related to glibc, gcc, Net-SNMP, and OpenSSH.

CVE-2015-5600, CVE-2016-0701, CVE-2015-3197,
CVE-2015-8777, CVE-2015-3193, CVE-2015-3194,
CVE-2015-3195, CVE-2015-3196, CVE-2015-1794,
CVE-2014-3565, CVE-2015-5277,CVE-2015-5276

Vulnerability Details

CVEID: CVE-2015-5600**
DESCRIPTION:** OpenSSH could allow a local attacker to obtain sensitive information, caused by an error in the keyboard-interactive authentication mechanism that allows successive authentications that exceed the MaxAuthTries setting. An attacker could exploit this vulnerability using brute-force techniques to crack the victim’s password.
CVSS Base Score: 4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/104877 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2016-0701**
DESCRIPTION:** OpenSSL could allow a remote attacker to conduct man-in-the-middle attacks, caused by the use of weak Diffie-Hellman parameters based on unsafe primes that are generated and stored in X9.42-style parameter files. By performing multiple handshakes using the same private DH exponent, an attacker could exploit this vulnerability to conduct man-in-the-middle attacks.
CVSS Base Score: 5.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/110234 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N)

CVEID: CVE-2015-3197**
DESCRIPTION:** OpenSSL could allow a remote attacker to conduct man-in-the-middle attacks, caused by an error related to the negotiation of disabled SSLv2 ciphers by malicious SSL/TLS clients. An attacker could exploit this vulnerability to conduct man-in-the-middle attacks.
CVSS Base Score: 5.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/110235 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N)

CVEID: CVE-2015-8777**
DESCRIPTION:** GNU C Library (glibc or libc6) could allow a local attacker to bypass security restrictions, caused by an error in elf/rtld.c. By using a zero value of the LD_POINTER_GUARD environment variable, an attacker could exploit this vulnerability to bypass access restrictions.
CVSS Base Score: 5.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109775 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID: CVE-2015-3193**
DESCRIPTION:** OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error in the x86_64 Montgomery squaring procedure. An attacker with online access to an unpatched system could exploit this vulnerability to obtain private key information.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108502 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-2015-3194**
DESCRIPTION:** OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference when verifying certificates via a malformed routine. An attacker could exploit this vulnerability using signature verification routines with an absent PSS parameter to cause any certificate verification operation to crash.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108503 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-2015-3195**
DESCRIPTION:** OpenSSL could allow a remote attacker to obtain sensitive information, caused by a memory leak in a malformed X509_ATTRIBUTE structure. An attacker could exploit this vulnerability to obtain CMS data and other sensitive information.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108504 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-2015-3196**
DESCRIPTION:** OpenSSL is vulnerable to a denial of service, caused by a race condition when PSK identity hints are received by a multi-threaded client and the SSL_CTX structure is updated with the incorrect value. An attacker could exploit this vulnerability to possibly corrupt memory and cause a denial of service.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108505 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2015-1794**
DESCRIPTION:** OpenSSL is vulnerable to a denial of service, caused by an error when a client receives a ServerKeyExchange for an anonymous DH ciphersuite with the value of p set to 0. An attacker could exploit this vulnerability to trigger a segfault and cause a denial of service.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108539 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2014-3565**
DESCRIPTION:** Net-SNMP is vulnerable to a denial of service, caused by the improper handling of SNMP traps when started with the “-OQ” option. By sending an SNMP trap message containing a variable with a NULL type, a remote attacker could exploit this vulnerability to cause snmptrapd to crash.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/95638 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVEID: CVE-2015-5277**
DESCRIPTION:** GNU C Library (glibc) could allow a local attacker to gain elevated privileges on the system, caused by a heap corruption error in the nss_files backend for the Name Service Switch. An attacker could exploit this vulnerability to execute arbitrary code on the system with elevated privileges.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108484 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

Enterprise Scanner 2.3

Remediation/Fixes

Please contact support.

Workarounds and Mitigations

Customers that are using Proventia Network Enterprise Scanner are advised to upgrade to IBM Security QRadar Vulnerability Manager.

Please contact support for more information using <http://www.ibm.com/support/docview.wss?uid=swg21446948&gt;