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.

Classification

CVE ID: CVE-2025-30216

CVSS Base Severity: CRITICAL

CVSS Base Score: 9.4

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Affected Products

Vendor: nasa

Product: CryptoLib

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.2% (probability of being exploited)

EPSS Percentile: 42.21% (scored less or equal to compared to others)

EPSS Date: 2025-04-18 (when was this score calculated)

Stakeholder-Specific Vulnerability Categorization (SSVC)

SSVC Exploitation: poc

SSVC Technical Impact: total

SSVC Automatable: true

References

https://nvd.nist.gov/vuln/detail/CVE-2025-30216
https://github.com/nasa/CryptoLib/security/advisories/GHSA-v3jc-5j74-hcjv
https://github.com/nasa/CryptoLib/commit/810fd66d592c883125272fef123c3240db2f170f
https://github.com/user-attachments/assets/d49cea04-ce84-4d60-bb3a-987e843f09c4

Timeline