CVE-2023-3766

MEDIUM

Cloudflare Odoh-rs < 1.0.2 - Buffer Overflow

Title source: rule
STIX 2.1

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.

References (2)

Core 2

Scores

CVSS v3 5.9
EPSS 0.0050
EPSS Percentile 65.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (2)
cloudflare/odoh-rs < 1.0.2
crates.io/odoh-rs 0 - 1.0.2crates.io
Published Aug 03, 2023
Tracked Since Feb 18, 2026