CVE-2023-23846

HIGH

open5gs < 2.4.13 and < 2.5.7 - Unauthenticated Denial of Service via GTP Extension Header Length Zero

Title source: llm
STIX 2.1

Description

Due to insufficient length validation in the Open5GS GTP library versions prior to versions 2.4.13 and 2.5.7, when parsing extension headers in GPRS tunneling protocol (GPTv1-U) messages, a protocol payload with any extension header length set to zero causes an infinite loop. The affected process becomes immediately unresponsive, resulting in denial of service and excessive resource consumption. CVSS3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

References (1)

Core 1

Scores

CVSS v3 7.5
EPSS 0.0080
EPSS Percentile 51.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (2)
open5gs/open5gs 2.5.6
open5gs/open5gs < 2.4.13
Published Feb 01, 2023
Tracked Since Feb 18, 2026