CVE-2018-4012 Memory corruption in Webroot
An unauthenticated attacker can trigger a buffer overflow in the Webroot BrightCloud SDK by impersonating a remote server, leading to arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-4012?
CVE-2018-4012 is a critical memory corruption vulnerability in Webroot, published on 3 Jan 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An exploitable buffer overflow vulnerability exists in the HTTP header-parsing function of the Webroot BrightCloud SDK. The function bc_http_read_header incorrectly handles overlong headers, leading to arbitrary code execution. An unauthenticated attacker could impersonate a remote BrightCloud server to trigger this vulnerability.
Weakness: CWE-119
Which versions are affected by CVE-2018-4012?
It affects 1 product.
Products include Webroot Brightcloud.
How do I fix CVE-2018-4012?
No fix has been published for CVE-2018-4012 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-4012 being exploited?
There is no known exploitation of CVE-2018-4012 in the wild and no public exploit code.
Other vulnerabilities in Webroot
Sources
Also known as GHSA-vm7v-ghcw-jg4f.