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I. Basic Information for CVE-2026-22027
Vulnerability Information

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Vulnerability Title
CryptoLib Vulnerable to Heap Buffer Overflow in MariaDB SA Hexstring Conversion
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
CryptoLib 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CryptoLib是NASA开源的一个应用程序。用于使用 CCSDS 空间数据链路安全协议提供纯软件解决方案。 CryptoLib 1.4.3之前版本存在安全漏洞,该漏洞源于convert_hexstring_to_byte_array函数写入解码字节时缺少容量检查,可能导致缓冲区溢出并损坏堆内存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
nasaCryptoLib < 1.4.3 -
II. Public POCs for CVE-2026-22027
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III. Intelligence Information for CVE-2026-22027
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IV. Related Vulnerabilities
V. Comments for CVE-2026-22027

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