CVE-2024-45402— Picotls 资源管理错误漏洞

Picotls double free

Picotls is a TLS protocol library that allows users select different crypto backends based on their use case. When parsing a spoofed TLS handshake message, picotls (specifically, bindings within picotls that call the crypto libraries) may attempt to free the same memory twice. This double free occurs during the disposal of multiple objects without any intervening calls to malloc Typically, this triggers the malloc implementation to detect the error and abort the process. However, depending on the internals of malloc and the crypto backend being used, the flaw could potentially lead to a use-after-free scenario, which might allow for arbitrary code execution. The vulnerability is addressed with commit 9b88159ce763d680e4a13b6e8f3171ae923a535d.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

双重释放

Picotls 资源管理错误漏洞

picotls是H2O开源的一个用 C 编写的 RFC 8446 协议栈。 Picotls存在资源管理错误漏洞，该漏洞源于存在双重释放，可能会导致释放后重用，也可能允许任意代码执行。

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