SB2018031209 - Denial of service in Joyent sshpk
Published: March 12, 2018
Security Bulletin ID
SB2018031209
Severity
Low
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) Improper input validation (CVE-ID: CVE-2018-3737)
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to the use of certain regular expressions for parsing OpenSSH-format public keys. A remote attacker can create a custom public key to be parsed, trigger increases in runtime and cause the service to crash.
Remediation
Install update from vendor's website.