CVE-2024-24423
Published: 21 January 2025
Summary
CVE-2024-24423 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Linuxfoundation Magma. Its CVSS base score is 7.5 (High).
Operationally, ranked at the 37.5th 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 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Mandates timely identification and remediation of software flaws like the buffer overflow in decode_esm_message_container by patching to Magma v1.9.
Requires validation of information inputs such as crafted NAS packets to prevent buffer overflows in the ESM message container decoder.
Enforces memory protection mechanisms that mitigate buffer overflow exploits in functions like decode_esm_message_container, preventing DoS crashes.
NVD Description
The Linux Foundation Magma <= 1.8.0 (fixed in v1.9 commit 08472ba98b8321f802e95f5622fa90fec2dea486) was discovered to contain a buffer overflow in the decode_esm_message_container function at /nas/ies/EsmMessageContainer.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted NAS packet.
Deeper analysisAI
CVE-2024-24423 is a 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_esm_message_container function located at /nas/ies/EsmMessageContainer.cpp. It was published on 2025-01-21 and carries 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 primarily due to its potential for availability disruption.
The vulnerability can be exploited remotely over the network by unauthenticated attackers with low complexity and no user interaction required. By sending a specially crafted Non-Access Stratum (NAS) packet to a vulnerable Magma instance, attackers can trigger the buffer overflow, leading to a Denial of Service (DoS) condition that crashes the affected component.
Mitigation involves upgrading to Magma v1.9 or applying the fixing commit 08472ba98b8321f802e95f5622fa90fec2dea486. Additional details are available in the advisory at https://cellularsecurity.org/ransacked.
Details
- CWE(s)