CVE-2025-30216
CRITICALCryptoLib < 1.4.0 - Heap-based Buffer Overflow in Crypto_TM_ProcessSecurity
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2025-30216. PoCs published by oliviaisntcringe.
AI-analyzed exploit summary This PoC demonstrates a heap overflow vulnerability in CryptoLib's `Crypto_TM_ProcessSecurity` function by generating malicious TM packets with an inflated Secondary Header Length, leading to arbitrary code execution or DoS.
Description
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.
Exploits (1)
This PoC demonstrates a heap overflow vulnerability in CryptoLib's `Crypto_TM_ProcessSecurity` function by generating malicious TM packets with an inflated Secondary Header Length, leading to arbitrary code execution or DoS.
References (3)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H