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Security Advisories: GSA_kwCzR0hTQS1tMjJtLWg0cmYtcHdxM80mrA

Path Traversal in SharpZipLib

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.

Permalink: https://github.com/advisories/GHSA-m22m-h4rf-pwq3
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1tMjJtLWg0cmYtcHdxM80mrA
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: about 2 years ago
Updated: about 1 year ago

CVSS Score: 7.3
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

Identifiers: GHSA-m22m-h4rf-pwq3, CVE-2021-32840
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-32840
• https://github.com/icsharpcode/SharpZipLib/commit/a0e96de70b5264f4c919b09253b1522bc7a221cc
• https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3
• https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/
• https://github.com/advisories/GHSA-m22m-h4rf-pwq3

Repository: https://github.com/icsharpcode/SharpZipLib
Blast Radius: 1.0

Affected Packages