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 1.3.3 and earlier, a heap buffer overflow vulnerability persists in the Crypto_TC_ApplySecurity function due to an incomplete validation check on the fl (frame length) field. Although CVE-2025-29912 addressed an underflow issue involving fl, the patch fails to fully prevent unsafe calculations. As a result, an attacker can still craft malicious frames that cause a negative tf_payload_len, which is then interpreted as a large unsigned value, leading to a heap buffer overflow in a memcpy call.
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Tue, 29 Apr 2025 14:45:00 +0000
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Nasa
Nasa cryptolib |
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CPEs | cpe:2.3:a:nasa:cryptolib:*:*:*:*:*:*:*:* | |
Vendors & Products |
Nasa
Nasa cryptolib |
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cvssV3_1
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Wed, 02 Apr 2025 14:15:00 +0000
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ssvc
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Tue, 01 Apr 2025 22:15:00 +0000
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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 1.3.3 and earlier, a heap buffer overflow vulnerability persists in the Crypto_TC_ApplySecurity function due to an incomplete validation check on the fl (frame length) field. Although CVE-2025-29912 addressed an underflow issue involving fl, the patch fails to fully prevent unsafe calculations. As a result, an attacker can still craft malicious frames that cause a negative tf_payload_len, which is then interpreted as a large unsigned value, leading to a heap buffer overflow in a memcpy call. | |
Title | Heap Buffer Overflow via Incomplete Length Check in `Crypto_TC_ApplySecurity` | |
Weaknesses | CWE-191 CWE-787 |
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cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-04-01T22:06:22.576Z
Updated: 2025-04-02T13:46:42.702Z
Reserved: 2025-03-21T14:12:06.270Z
Link: CVE-2025-30356

Updated: 2025-04-02T13:46:36.478Z

Status : Analyzed
Published: 2025-04-01T22:15:21.297
Modified: 2025-04-29T14:20:48.880
Link: CVE-2025-30356

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