Title: Portage insecure temporary location
Author: Michael Orlitzky
Fixedin: commit ef8c21e5, version 2.3.94

Summary

The Gentoo portage package manager builds packages in a temporary location. By default, that temporary location is accessible to unprivileged users even though the build essentially takes place as root. In some common situations (during reinstalls, for example), this leaves the source tree momentarily writable by an existing system user who can exploit the situation to gain root.

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Complete details here: http://michael.orlitzky.com/cves/cve-2019-20384.xhtml


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What is CVE?

Common Vulnerabilities and Exposures (CVE®) is a list of common identifiers for publicly known cybersecurity vulnerabilities, and is the industry standard for vulnerability and exposure identifiers.

The process of creating a CVE Entry begins with the discovery of a potential security vulnerability.  The MITRE Corporation currently maintains CVE and this public website, oversees the CNAs and CVE Board, and provides impartial technical guidance throughout the process to ensure CVE serves the public interest.

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Founded in 1994, Metro Data, Inc. is a leading information systems & services firm that works exclusively with business clients to develop and apply customized technology solutions that accomplish a client's strategic goals.

Businesses have chosen Metro Data, Inc. to help keep pace with the ever-changing technology landscape.  Metro Data, Inc.’s "end-to-end" experience helps their customers to secure their systems, reduce costs, and improve their business information systems performance.

About the CVE Author, Michael J. Orlitzky

Mike has been with Metro Data, Inc. for over 20 years.  He holds a PhD in Mathematics.  He has been globally recognized for his work in discovering (and fixing) vulnerabilities in operating systems and application software.  His research has been published in professional journals and he's been acknowledged by industry and academic peers for his work.

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