CVE-2023-3748
LowCVSS 3.5Exploitation Probability (EPSS)
Low risk47th percentile — higher than 47% of all known CVEs
Summary
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, leading to an infinite loop and causing a denial of service.
Risk Assessment
This vulnerability may lead to denial of service, affecting system availability and potentially disrupting network operations.
Recommendation
It is recommended to update FRRouting to the latest version to mitigate this vulnerability and to monitor network traffic for potential attacks.
Original NVD description (English source)
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.