CVE-2025-30356
- Source
- https://cve.org/CVERecord?id=CVE-2025-30356
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-30356.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-30356
- Aliases
-
- GHSA-6w2x-w7w3-85w2
- Published
- 2025-04-01T22:06:22.576Z
- Modified
- 2026-07-15T01:49:04.046914399Z
- Severity
-
- 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Heap Buffer Overflow via Incomplete Length Check in `Crypto_TC_ApplySecurity`
- Details
-
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 CryptoTCApplySecurity 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 tfpayloadlen, which is then interpreted as a large unsigned value, leading to a heap buffer overflow in a memcpy call.
- Database specific
{ "cwe_ids": [ "CWE-191", "CWE-787" ], "cna_assigner": "GitHub_M", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/30xxx/CVE-2025-30356.json" }- References
Affected packages
Git / github.com/nasa/cryptolib
Affected ranges
- Type
- GIT
- Repo
- https://github.com/nasa/cryptolib
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
{ "source": [ "CPE_RANGE", "REFERENCES" ], "cpe": "cpe:2.3:a:nasa:cryptolib:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "0" }, { "fixed": "1.4.0" } ] }