9.0crit
CVE-2018-4012
An exploitable buffer overflow vulnerability exists in the HTTP header-parsing function of the Webroot BrightCloud SDK.
Published 7 y ago · modified 4 mo ago · JSON
CVSS
9.0
v3.0 · CNA
CISA KEV
No
not known exploited
EPSS
2.5%
percentile 85%
Public exploits
0
none known
Summary
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.
Exploit prediction (EPSS)
2.55% probability of exploitation in the next 30 days, higher than 85% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| CNA | 3.0 | 9.0 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
| CNA | 3.0 | 9.0 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.0 | 8.1 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Affected products
- n/a Webroot
Classification
- Weakness
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- talosintelligence.com /vulnerability_reports/TALOS-2018-0683 · x_refsource_MISC, x_transferred
Sources
- CVE List: CVE-2018-4012
- NVD: CVE-2018-4012
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