Vulnerability · Published Aug 3, 2023 · Assigned by cloudflare
CVE-2023-3766Invalid Slice Split Results in Server Panic
Medium 5.9
In plain English
A medium-severity buffer overflow in odoh-rs from Cloudflare. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).
Official description
A vulnerability was discovered in the odoh-rs rust crate that stems from faulty logic during the parsing of encrypted queries. This issue specifically occurs when processing encrypted query data received from remote clients and enables an attacker with knowledge of this vulnerability to craft and send specially designed encrypted queries to targeted ODOH servers running with odoh-rs. Upon successful exploitation, the server will crash abruptly, disrupting its normal operation and rendering the service temporarily unavailable.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cloudflare | odoh-rs | 0 – before 1.0.2 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H