SB2016050504 - Traffic decryption in OpenSSL
Published: May 5, 2016 Updated: September 14, 2018
Security Bulletin ID
SB2016050504
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Traffic decryption (CVE-ID: CVE-2016-2107)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/U:Amber
The vulnerability allows a remote user to decrypt traffic on the target system.
The weakness is due to access control error.If the connection uses an AES CBC cipher and the server support AES-NI attackers can perform padding oracle attack.
Successful exploitation of the vulnerability leads to traffic decryption on the vulnerable system.
Remediation
Install update from vendor's website.
References
- https://www.openssl.org/news/secadv/20160503.tx
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- https://support.apple.com/cs-cz/HT206903