QID 376502

QID 376502: Cygwin libarchive Package Multiple Security Vulnerabilities

Cygwin is a Linux-style operating environment for Microsoft Windows.

Multiple Security vulnerabilities were reported in libarchive.

Affected Versions:
Cygwin libarchive package prior to 3.5.3-1.
QID Detection Logic (authenticated):
The QID flags if it finds a vulnerable version of the libarchive package in installed file. The location of the file is determined by the key "HKLM\SOFTWARE\Cygwin\setup", value "rootdir". The file is present in the <rootdir>\etc\setup folder.

Successful exploitation of these vulnerabilities may affect confidentiality, integrity and availability.

CVSS V3 rated as High - 6.5 severity.

CVSS V2 rated as Medium - 4.3 severity.

Solution

Upgrade to Cygwin libarchive package to version 3.5.3-1 or later. For more information, please refer to the vendor advisory for affected Cygwin

Vendor References

Cygwin Security Advisory - cygwin.com/pipermail/cygwin-announce/2021-August/010180.html

CVEs related to QID 376502

CVE-2021-31566 | CVE-2021-36976 |

Software Advisories

Advisory ID	Software	Component	Link
Cygwin Security Advisory			cygwin.com/pipermail/cygwin-announce/2021-August/010180.html

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