CVE-2025-64096 (GCVE-0-2025-64096)
Vulnerability from cvelistv5 – Published: 2025-10-30 17:09 – Updated: 2026-01-09 22:54
VLAI
EPSS
VEX
Title
CryptoLib vulnerable to Stack Buffer Overflow in Crypto_Key_Update due to missing TLV length check
Summary
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 1.4.2, there is a missing bounds check in Crypto_Key_update() (crypto_key_mgmt.c) which allows a remote attacker to trigger a stack-based buffer overflow by supplying a TLV packet with a spoofed length field. The function calculates the number of keys from an attacker-controlled field (pdu_len), which may exceed the static array size (kblk[98]), leading to an out-of-bounds write and potential memory corruption. This vulnerability is fixed in 1.4.2.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-30 18:15 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/nasa/CryptoLib/security/adviso… | x_refsource_CONFIRM |
Impacted products
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Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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