SB2016102101 - Denial of service in OpenSSH
Published: October 21, 2016 Updated: December 19, 2016
Security Bulletin ID
SB2016102101
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Denial of service (CVE-ID: CVE-2016-8858)
The vulnerability allows a remote unauthenticated attacker to cause DoS conditions on the target system.The weakness is due to flaw in kex_input_kexinit() function. By sending a specially crafted data during the key exchange process, attackers can cause memory exhaustion. Consuming up to 128 MB per connection may lead to denial of service.
Successful exploitation of the vulnerability results in denial of service of the vulnerable system.
Remediation
Install update from vendor's website.