漏洞标题
CryptoLib 的 Crypto_TC_Prep_AAD 函数因整数下溢导致缓冲区溢出
漏洞描述信息
N/A
CVSS信息
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
漏洞类别
跨界内存写
漏洞标题
CryptoLib's Crypto_TC_Prep_AAD Has Buffer Overflow Due to Integer Underflow
漏洞描述信息
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. A critical heap buffer overflow vulnerability was identified in the `Crypto_TC_Prep_AAD` function of CryptoLib versions 1.3.3 and prior. This vulnerability allows an attacker to trigger a Denial of Service (DoS) or potentially execute arbitrary code (RCE) by providing a maliciously crafted telecommand (TC) frame that causes an unsigned integer underflow. The vulnerability lies in the function `Crypto_TC_Prep_AAD`, specifically during the computation of `tc_mac_start_index`. The affected code incorrectly calculates the MAC start index without ensuring it remains within the bounds of the `ingest` buffer. When `tc_mac_start_index` underflows due to an incorrect length calculation, the function attempts to access an out-of-bounds memory location, leading to a segmentation fault. The vulnerability is still present in the repository as of commit `d3cc420ace96d02a5b7e83d88cbd2e48010d5723`.
CVSS信息
N/A
漏洞类别
跨界内存读
漏洞标题
CryptoLib 数字错误漏洞
漏洞描述信息
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 1.3.3及之前版本存在数字错误漏洞,该漏洞源于Crypto_TC_Prep_AAD函数存在无符号整数下溢,可能导致堆缓冲区溢出,从而引发拒绝服务或执行任意代码。
CVSS信息
N/A
漏洞类别
数字错误