CVE-2021-32841
CVE-2021-32841 · Path Traversal in SharpZipLib
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 4.0 · Medium · EPSS 1.1%
- Published
- Updated
Stack: system
Affected products and versions
sharpziplib
- Versions
- ≥ 1.3.3, < 1.3.3: Affected (custom)
- ≥ 1.3.0, < 1.3.0*: Affected (custom)
No fix published
mono Ubuntu:22.04:LTS
- Versions
- 6.8.0.105+dfsg-3.2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mono Ubuntu:24.04:LTS
- Versions
- 6.8.0.105+dfsg-3.4
- 6.8.0.105+dfsg-3.5ubuntu1
- 6.8.0.105+dfsg-3.6ubuntu1
- 6.8.0.105+dfsg-3.6ubuntu2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mono Ubuntu:25.10
- Versions
- 6.12.0.199+dfsg-3
- 6.12.0.199+dfsg-6
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mono Ubuntu:26.10
- Versions
- 6.14.1+ds2-2
- 6.14.1+ds2-3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
mono Ubuntu:26.04:LTS
- Versions
- 6.12.0.199+dfsg-6
- 6.14.1+ds2-1
- 6.14.1+ds2-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published