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. Prior to version 1.4.3, the convert_hexstring_to_byte_array() function in the MariaDB SA interface writes decoded bytes into a caller-provided buffer without any capacity check. When importing SA fields from the database (e.g., IV, ARSN, ABM), a malformed or oversized hex string in the database can overflow the destination buffer, corrupting adjacent heap memory.
This issue has been patched in version 1.4.3.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Nasa Cryptolib
cpe:2.3:a:nasa:cryptolib:*:*:*:*:*:*:*:*
|
— |
1.4.3
|
References 3
https://github.com/nasa/CryptoLib/commit/2372efd3da1ccb226b4297222e25f41ecc8482…
security-advisories@github.com
https://github.com/nasa/CryptoLib/releases/tag/v1.4.3
security-advisories@github.com
https://github.com/nasa/CryptoLib/security/advisories/GHSA-3m35-m689-h29x
security-advisories@github.com