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cveCloudflareCVE-2023-3766
HistoryAug 03, 2023 - 3:15 p.m.

CVE-2023-3766

2023-08-0315:15:32
CWE-120
cloudflare
web.nvd.nist.gov
24
vulnerability
odoh-rs
rust crate
odoh servers
encrypted queries
remote clients
exploit
server crash

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

5.6

Confidence

High

EPSS

0.001

Percentile

31.3%

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 attackerΒ 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 configurations

Nvd
Node
cloudflareodoh-rsRange<1.0.2rust
VendorProductVersionCPE
cloudflareodoh-rs*cpe:2.3:a:cloudflare:odoh-rs:*:*:*:*:*:rust:*:*

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "platforms": [
      "Linux",
      "MacOS",
      "Windows"
    ],
    "product": "odoh-rs",
    "repo": "https://github.com/cloudflare/odoh-rs",
    "vendor": "Cloudflare",
    "versions": [
      {
        "changes": [
          {
            "at": "1.0.2",
            "status": "unaffected"
          }
        ],
        "lessThan": "1.0.2",
        "status": "affected",
        "version": "0",
        "versionType": "patch"
      }
    ]
  }
]

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

5.6

Confidence

High

EPSS

0.001

Percentile

31.3%

Related for CVE-2023-3766