CVE-2025-30216: CryptoLib Has Heap Overflow in Crypto_TM_ProcessSecurity due to Unchecked Secondary Header Length
First published: Tue Mar 25 2025(Updated: )
CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight System (cFS) and a ground station. In versions 1.3.3 and prior, a Heap Overflow vulnerability occurs in the `Crypto_TM_ProcessSecurity` function (`crypto_tm.c:1735:8`). When processing the Secondary Header Length of a TM protocol packet, if the Secondary Header Length exceeds the packet's total length, a heap overflow is triggered during the memcpy operation that copies packet data into the dynamically allocated buffer `p_new_dec_frame`. This allows an attacker to overwrite adjacent heap memory, potentially leading to arbitrary code execution or system instability. A patch is available at commit 810fd66d592c883125272fef123c3240db2f170f.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| <1.3.3 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-30216?
The severity of CVE-2025-30216 is classified as critical due to the potential for remote code execution via heap overflow.
How do I fix CVE-2025-30216?
To fix CVE-2025-30216, upgrade CryptoLib to version 1.3.4 or later, which addresses the heap overflow vulnerability.
What versions of CryptoLib are affected by CVE-2025-30216?
CryptoLib versions 1.3.3 and prior are affected by CVE-2025-30216.
What kind of vulnerability is CVE-2025-30216?
CVE-2025-30216 is a heap overflow vulnerability found in the CryptoLib implementation of the CCSDS Space Data Link Security Protocol.
Can CVE-2025-30216 be exploited remotely?
Yes, CVE-2025-30216 can be exploited remotely, allowing attackers to execute arbitrary code in the context of the application.
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