CVE-2026-22027 | THREATINT

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.

PUBLISHED Reserved 2026-01-05 | Published 2026-01-10 | Updated 2026-01-10 | Assigner GitHub_M

MEDIUM: 5.7CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-122: Heap-based Buffer Overflow

Product status

< 1.4.3

affected

References

github.com/...ptoLib/security/advisories/GHSA-3m35-m689-h29x

github.com/...ommit/2372efd3da1ccb226b4297222e25f41ecc84821d

github.com/nasa/CryptoLib/releases/tag/v1.4.3

cve.org (CVE-2026-22027)

nvd.nist.gov (CVE-2026-22027)

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