Infinite loop Affecting frrouting/frr package, versions [,8.5)


Severity

Recommended
0.0
low
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.07% (22nd percentile)

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  • Snyk IDSNYK-UNMANAGED-FRROUTINGFRR-5808488
  • published28 Jul 2023
  • disclosed28 Jul 2023
  • creditharryreps

Introduced: 28 Jul 2023

CVE-2023-3748  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade frrouting/frr to version 8.5 or higher.

Overview

Affected versions of this package are vulnerable to Infinite loop 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.

CVSS Base Scores

version 3.1