Double Free in Dropbear - CVE-2017-9078
Published: September 21, 2018
Vulnerability identifier: #VU14820
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-9078
CWE-ID: CWE-415
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Matt Johnston
Affected software:
Dropbear
Dropbear
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a double free in cleanup of TCP listeners when the -a option is enabled. The vulnerability allows a remote authenticated attacker to trigger double free error and execute arbitrary code on the target system with root privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2017-9078
Install update from vendor's website.