CVE-2021-32840

Path Traversal in SharpZipLib

State: Published
Severity: 7.3 High
Published: Jan 26, 2022
Updated: Apr 22, 2025
Reserved: May 12, 2021

Description

SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Prior to version 1.3.3, a TAR file entry `../evil.txt` may be extracted in the parent directory of `destFolder`. This leads to arbitrary file write that may lead to code execution. The vulnerability was patched in version 1.3.3.

Scores

CVSS	Score	Vector	Source
3.1	7.3 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L	GitHub_M

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
sharpziplibicsharpcode	1.3.3 to before 1.3.3Affected 0.86.0 to before 0.86.0*Affected

References

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