CVE-2018-4012

CRITICAL

Webroot BrightCloud SDK - Buffer Overflow in HTTP Header Parsing

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0683

Scores

CVSS v3 9.0
EPSS 0.0255
EPSS Percentile 83.0%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Details

CWE
CWE-119
Status published
Products (1)
webroot/brightcloud
Published Jan 03, 2019
Tracked Since Feb 18, 2026