Heap-based buffer overflow in Webroot BrightCloud SDK - CVE-2018-4012
Published: December 26, 2018
Vulnerability identifier: #VU16714
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2018-4012
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Webroot Software, Inc.
Affected software:
Webroot BrightCloud SDK
Webroot BrightCloud SDK
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists in the HTTP header-parsing function of the Webroot BrightCloud SDK due to heap-based buffer overflow when the function bc_http_read_headerincorrectly handles overlong headers. A remote attacker can use man-in-the-middle techniques to impersonate a remote BrightCloud server, trigger memory corruption and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
How to mitigate CVE-2018-4012
Install update from vendor's website.