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. Prior to version 1.4.3, when the KMC server returns a non-200 HTTP status code, cryptography_encrypt() and cryptography_decrypt() return immediately without freeing previously allocated buffers. Each failed request leaks approximately 467 bytes. Repeated failures (from a malicious server or network issues) can gradually exhaust memory. This issue has been patched in version 1.4.3.
References
https://github.com/nasa/CryptoLib/security/advisories/GHSA-h74x-vwwr-mm5g
https://github.com/nasa/CryptoLib/security/advisories/GHSA-h74x-vwwr-mm5g
CVSS impact metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
3.7 · Low
Information
Source identifier
Vulnerability status
Analyzed
Published
2026-01-10T01:16:18.703Z
6 days agoLast modified
2026-01-16T16:39:52.060Z
2 hours ago