Arbitrary code execution when checking out an attacker-controlled Git branch

Cygwin Git is a patch set for the git command line tool for the cygwin environment. A specially crafted repository that contains symbolic links as well as files with backslash characters in the file name may cause just-checked out code to be executed while checking out a repository using Git on Cygwin. The problem will be patched in the Cygwin Git v2.31.1-2 release. At time of writing, the vulnerability is present in the upstream Git source code; any Cygwin user who compiles Git for themselves from upstream sources should manually apply a patch to mitigate the vulnerability. As mitigation users should not clone or pull from repositories from untrusted sources. CVE-2019-1354 was an equivalent vulnerability in Git for Visual Studio.

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

输入验证不恰当

Cygwin 输入验证错误漏洞

Cygwin是一个应用软件。提供实质性POSIX API功能的DLL。 Cygwin Git 存在输入验证错误漏洞，该漏洞源于一个包含符号链接和文件名中带有反斜杠字符的文件的特殊设计的存储库可能会导致刚签出的代码被执行。

N/A

N/A