CVE-2023-3748

2023-07-2416:15:13

CWE-835

[email protected]

web.nvd.nist.gov

frrouting

cve-2023-3748

flaw

babeld

unicast

hello messages

denial of service

attack

security vulnerability

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.2 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

21.0%

JSON

A flaw was found in FRRouting when parsing certain babeld unicast hello messages that are intended to be ignored. This issue may allow an attacker to send specially crafted hello messages with the unicast flag set, the interval field set to 0, or any TLV that contains a sub-TLV with the Mandatory flag set to enter an infinite loop and cause a denial of service.

Affected configurations

NVD

Node

frroutingfrroutingRange<8.5

CPENameOperatorVersion
frrouting:frroutingfrroutinglt8.5

CPE	Name	Operator	Version
frrouting:frrouting	frrouting	lt	8.5

CNA Affected

[
  {
    "product": "frr",
    "vendor": "n/a",
    "versions": [
      {
        "version": "8.5",
        "status": "unaffected"
      }
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "frr",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:8"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "frr",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:9"
    ]
  },
  {
    "product": "Fedora",
    "vendor": "Fedora",
    "collectionURL": "https://packages.fedoraproject.org/",
    "packageName": "frr",
    "defaultStatus": "unaffected"
  }
]