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.
Advisories

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Fixes

Solution

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Workaround

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History

Thu, 15 Jan 2026 21:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:nasa:cryptolib:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 6.0, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H'}


Mon, 12 Jan 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 12 Jan 2026 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Nasa
Nasa cryptolib
Vendors & Products Nasa
Nasa cryptolib

Sat, 10 Jan 2026 00:45:00 +0000

Type Values Removed Values Added
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, 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.
Title CryptoLib Vulnerable to Heap Buffer Overflow in MariaDB SA Hexstring Conversion
Weaknesses CWE-122
References
Metrics cvssV4_0

{'score': 5.7, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-01-12T16:23:53.099Z

Reserved: 2026-01-05T22:30:38.718Z

Link: CVE-2026-22027

cve-icon Vulnrichment

Updated: 2026-01-12T15:33:56.868Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-10T01:16:18.990

Modified: 2026-01-15T21:45:02.797

Link: CVE-2026-22027

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-12T14:36:34Z

Weaknesses