Heap overflow in OpenSSL

1) Heap overflow

EUVDB-ID: #VU640

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-2105

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote user to cause heap overflow on the target system.

The weakness is caused by insufficient input validation. By sending a great deal of input data attackers are able to cause overflow of the EVP_EncodeUpdate() function used for binary data encoding.

Successful exploitation of the vulnerability may result in heap overflow on the vulnerable system.

Mitigation

Update 1.0.1 to 1.0.1t.
Update 1.0.2 to 1.0.2h.

Vulnerable software versions

OpenSSL: 1.0.1 - 1.0.2

Oracle Solaris: 10 - 11.3

Oracle Access Manager: 10.1.4.2 - 11.1.1.7

Oracle Exalogic Infrastructure: 1.0 - 2.0

PeopleSoft Enterprise PeopleTools: 8.53 - 8.55

Oracle VM VirtualBox: 5.0.20

Oracle Secure Global Desktop: 4.63 - 5.2

: 5.6.29 - 5.7.11

:

Oracle Enterprise Manager Ops Center: 12.1.4 - 12.3.2

Oracle E-Business Suite: 12.1.3

Oracle Agile Engineering Data Management: 6.1.3.0 - 6.2.0.0

Oracle Commerce Guided Search: 6.2.2 - 6.5.2

Oracle Life Sciences Data Hub: 2.1

Oracle VM Server for x86: 3.2

Oracle Linux: 5 - 7

macOS: 10.11 - 10.11.5

CPE2.3

• cpe:2.3:a:openssl_software_foundation:openssl:1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:openssl_software_foundation:openssl:1.0.2:*:*:*:*:*:*:*
• cpe:2.3:o:oracle:solaris:10:*:*:*:*:*:*:*
• cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:oracle_access_manager:10.1.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:oracle_access_manager:10.1.4.3:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:oracle_access_manager:11.1.1.7:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:oracle_exalogic_infrastructure:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:oracle_exalogic_infrastructure:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.53:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:vm_virtualbox:5.0.20:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:oracle_secure_global_desktop:4.63:*:*:*:*:*:*:*
• cpe:2.3::::5.6.29:*:*:*:*:*:*:*
• cpe:2.3:::::*:*:*:*:*:*:*
• cpe:2.3:a:oracle:oracle_enterprise_manager_ops_center:12.1.4:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:oracle_e-business_suite:12.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:oracle_agile_engineering_data_management:6.1.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:oracle_commerce_guided_search:6.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:oracle_life_sciences_data_hub:2.1:*:*:*:*:*:*:*
• cpe:2.3:a:oracle:oracle_vm_server_for_x86:3.2:*:*:*:*:*:*:*
• cpe:2.3:o:oracle:oracle_linux:5:*:*:*:*:*:*:*
• cpe:2.3:o:apple:macos:10.11.5:*:*:*:*:*:*:*

External links

https://www.openssl.org/news/secadv/20160503.txt
https://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
https://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
https://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
https://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
https://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
https://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
https://support.apple.com/cs-cz/HT206903

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.