CVE-2021-32841

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Summary

CVECVE-2021-32841
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-01-26 22:15:00 UTC
Updated2022-02-07 19:09:00 UTC
DescriptionSharpZipLib (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.

Risk And Classification

Problem Types: CWE-22

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Sharpziplib Project Sharpziplib All All All All

References

ReferenceSourceLinkTags
fix: specialized tar extract traversal · icsharpcode/SharpZipLib@5c3b293 · GitHub MISC github.com
Release v1.3.3 · icsharpcode/SharpZipLib · GitHub MISC github.com
GHSL-2021-125: Path traversal in SharpZipLib - CVE-2021-32840, CVE-2021-32841, CVE-2021-32842 | GitHub Security Lab CONFIRM securitylab.github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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