UBUNTU-CVE-2021-32841
- Source
- https://ubuntu.com/security/CVE-2021-32841
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-32841.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-32841
- Related
- Published
- 2022-01-26T22:15:00Z
- Modified
- 2024-10-15T14:08:10Z
- 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
destDirends with slash. If thedestDiris not slash terminated like/home/user/dirit 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
-
- https://ubuntu.com/security/CVE-2021-32841
- https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/
- https://github.com/icsharpcode/SharpZipLib/commit/5c3b293de5d65b108e7f2cd0ea8f81c1b8273f78
- https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3
- https://www.cve.org/CVERecord?id=CVE-2021-32841
Affected packages
Ubuntu:22.04:LTS / mono
Package
- Name
- mono
- Purl
- pkg:deb/ubuntu/mono?arch=src?distro=jammy
Ubuntu:24.10 / mono
Package
- Name
- mono
- Purl
- pkg:deb/ubuntu/mono?arch=src?distro=oracular