Security Bulletin: OpenSSL as used in IBM QRadar SIEM is vulnerable to multiple CVE's.

Summary

OpenSSL vulnerabilities disclosed on May 3 2016, https://www.openssl.org/news/secadv/20160503.txt plus CVE-2016-2842.

Vulnerability Details

CVE-ID: CVE-2016-2105 **
Description:OpenSSL is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the EVP_EncodeUpdate() function. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash. **
CVSS Base Score: 5.6**
CVSS Temporal Score:** See https://exchange.xforce.ibmcloud.com/vulnerabilities/112855 for the current score**
CVSS Environmental Score:** Undefined*
CVSS Vector:** CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

**
CVE-ID:CVE-2016-2106 **
Description:OpenSSL is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the EVP_EncryptUpdate() function. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash. **
CVSS Base Score: 5.6
CVSS Temporal Score:** See https://exchange.xforce.ibmcloud.com/vulnerabilities/112856 for the current score**
CVSS Environmental Score:** Undefined*
CVSS Vector:** CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

**
CVE-ID:CVE-2016-2107 **
Description:OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error when the connection uses an AES CBC cipher and the server support AES-NI. A remote user with the ability to conduct a man-in-the-middle attack could exploit this vulnerability via the POODLE (Padding Oracle On Downgraded Legacy Encryption) attack to decrypt traffic. **
CVSS Base Score: 4.3
CVSS Temporal Score:** See https://exchange.xforce.ibmcloud.com/vulnerabilities/112854 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:N/A:N

**
CVE-ID:CVE-2016-2108 **
Description:OpenSSL could allow a remote attacker to execute arbitrary code on the system, caused by a buffer underflow when deserializing untrusted ASN.1 structures. An attacker could exploit this vulnerability to corrupt memory and trigger an out-of-bounds write and execute arbitrary code on the system. **
CVSS Base Score: 8.1
CVSS Temporal Score:** See https://exchange.xforce.ibmcloud.com/vulnerabilities/112853 for the current score**
CVSS Environmental Score:** Undefined*
CVSS Vector:** CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

**
CVE-ID:CVE-2016-2109 **
Description:OpenSSL is vulnerable to a denial of service, caused by a memory allocation error. By reading specially crafted ASN.1 data from a BIO using functions such as d2i_CMS_bio(), an attacker could exploit this vulnerability to consume all available resources and exhaust memory. **
CVSS Base Score: 5.3
CVSS Temporal Score:** See https://exchange.xforce.ibmcloud.com/vulnerabilities/112857 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

**
CVE-ID:CVE-2016-2842 **
Description:OpenSSL is vulnerable to a denial of service, caused by the failure to verify that a certain memory allocation succeeds by the doapr_outch function. A remote attacker could exploit this vulnerability using a specially crafted string to cause an out-of-bounds write or consume an overly large amount of resources. **
CVSS Base Score: 7.5
CVSS Temporal Score:** See https://exchange.xforce.ibmcloud.com/vulnerabilities/111304 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:H

Affected Products and Versions

• IBM QRadar 7.1.n
• IBM QRadar 7.2.n

Remediation/Fixes

• IBM QRadar SIEM 7.1 MR2 Patch 13
• IBM QRadar SIEM/QRIF/QRM/QVM 7.2.7 Patch 1

Workarounds and Mitigations

None