PT-2025-1405 · Unknown · Open5Gs Mme

Published 2024-02-02 · Updated 2025-01-27 · CVE-2023-37013

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions Open5GS MME versions prior to 2.6.4

Description The issue concerns an assertion in Open5GS MME that can be remotely triggered via a sufficiently large ASN.1 packet sent over the S1AP interface. An attacker can repeatedly send such oversized packets to cause the ogs sctp recvmsg routine to reach an unexpected network state, leading to a denial of service.

Recommendations For versions prior to 2.6.4, update to version 2.6.4 or later to resolve the issue. As a temporary workaround, consider restricting access to the S1AP interface to minimize the risk of exploitation. Avoid using the ogs sctp recvmsg routine until the issue is resolved.

Exploit

Fix

Assertion Failure

Weakness Enumeration

CWE-617

Related Identifiers

BDU:2025-13321

CVE-2023-37013

Affected Products

Open5Gs Mme

References · 8

• 🔥 https://cellularsecurity.org/ransacked · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-37013 · Security Note
• https://osv.dev/vulnerability/CVE-2023-37013 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-13321 · Security Note
• https://github.com/open5gs/open5gs/pull/2942 · Note
• https://twitter.com/CVEnew/status/1882300210023453105 · Twitter Post
• https://twitter.com/cracbot/status/1883763026886807687 · Twitter Post
• https://vuldb.com/?id.292964 · Note