CVE-2024-24422
Published: 21 January 2025
Summary
CVE-2024-24422 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Linuxfoundation Magma. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 37.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SC-5 (Denial-of-service Protection) and SI-10 (Information Input Validation).
Deeper analysis
CVE-2024-24422 is a stack-based buffer overflow vulnerability (CWE-787) in the Linux Foundation's Magma project, affecting versions up to and including 1.8.0. The flaw resides in the decode_protocol_configuration_options function within the file /3gpp/3gpp_24.008_sm_ies.c. It enables attackers to trigger a denial of service (DoS) condition by sending a specially crafted Non-Access Stratum (NAS) packet. The vulnerability has a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), indicating high severity due to its potential for significant availability disruption.
Any unauthenticated attacker with network access to a vulnerable Magma deployment can exploit this issue, as it requires no privileges or user interaction and has low attack complexity. By transmitting a malicious NAS packet, the attacker causes a stack overflow, leading to application crashes or service unavailability, effectively denying service to legitimate users of the affected cellular network infrastructure.
The vulnerability is fixed in Magma version 1.9 via commit 08472ba98b8321f802e95f5622fa90fec2dea486. Security practitioners should update to this version or later and review the advisory at https://cellularsecurity.org/ransacked for additional details on mitigation and verification steps.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-21841
Vulnerability details
The Linux Foundation Magma <= 1.8.0 (fixed in v1.9 commit 08472ba98b8321f802e95f5622fa90fec2dea486) was discovered to contain a stack overflow in the decode_protocol_configuration_options function at /3gpp/3gpp_24.008_sm_ies.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted NAS packet.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
CVE describes remote unauthenticated DoS via crafted NAS packet exploiting buffer overflow in decode function, directly enabling application/system exploitation for availability impact (T1499.004).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly addresses the CVE by requiring timely remediation through patching to Magma v1.9 or later, eliminating the stack overflow in decode_protocol_configuration_options.
Prevents exploitation by enforcing validation of NAS packet inputs, including protocol configuration options, to block malformed data causing buffer overflows.
Mitigates DoS impact from crafted NAS packets by implementing protections that limit effects of resource exhaustion due to stack overflows.