Arbitrary File Overwrite Vulnerability in fstream.DirWriter() Function

CVE-2019-13173 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:P/A:P

fstream before 1.0.12 is vulnerable to Arbitrary File Overwrite. Extracting tarballs containing a hardlink to a file that already exists in the system, and a file that matches the hardlink, will overwrite the system's file with the contents of the extracted file. The fstream.DirWriter() function is vulnerable.

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