CVE-2025-64096— CryptoLib vulnerable to Stack Buffer Overflow in Crypto_Key_Update due to missing TLV length check
Quick assessment
Affected
nasa CryptoLib
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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 1.4.2之前版本存在安全漏洞，该漏洞源于Crypto_Key_update函数缺少边界检查，可能导致栈缓冲区溢出和内存损坏。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-64096
Vulnerability Information
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Vulnerability Title
CryptoLib vulnerable to Stack Buffer Overflow in Crypto_Key_Update due to missing TLV length check
Source: CVE Program / CVE List V5
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 1.4.2, there is a missing bounds check in Crypto_Key_update() (crypto_key_mgmt.c) which allows a remote attacker to trigger a stack-based buffer overflow by supplying a TLV packet with a spoofed length field. The function calculates the number of keys from an attacker-controlled field (pdu_len), which may exceed the static array size (kblk[98]), leading to an out-of-bounds write and potential memory corruption. This vulnerability is fixed in 1.4.2.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
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 1.4.2之前版本存在安全漏洞，该漏洞源于Crypto_Key_update函数缺少边界检查，可能导致栈缓冲区溢出和内存损坏。
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
II. Public POCs for CVE-2025-64096
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Vendor Advisories for CVE-2025-64096 (1)
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V. Comments for CVE-2025-64096
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