CVE-2021-32841

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Source
https://cve.org/CVERecord?id=CVE-2021-32841
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-32841.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-32841
Aliases
Downstream
Published
2022-01-26T22:15:07.837Z
Modified
2026-03-13T04:58:10.548937Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Starting version 1.3.0 and prior to version 1.3.3, a check was added if the destination file is under destination directory. However, it is not enforced that destDir ends with slash. If the destDir is not slash terminated like /home/user/dir it is possible to create a file with a name thats begins with the destination directory, i.e. /home/user/dir.sh. Because of the file name and destination directory constraints, the arbitrary file creation impact is limited and depends on the use case. Version 1.3.3 contains a patch for this vulnerability.

References

Affected packages

Git / github.com/icsharpcode/sharpziplib

Affected ranges

Type
GIT
Repo
https://github.com/icsharpcode/sharpziplib
Events
Introduced
8f7d89201afa13c814f9b3d1813884ffe0ec7025
Fixed
1b1ab013ce1df02d8f27cf582197759c614d9126
Fixed
5c3b293de5d65b108e7f2cd0ea8f81c1b8273f78
Database specific 
{
    "versions": [
        {
            "introduced": "1.3.0"
        },
        {
            "fixed": "1.3.3"
        }
    ]
}

Affected versions

v1.*
v1.3.0
v1.3.1
v1.3.2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-32841.json"