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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities
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CVE-2021-35939 Detail

Description

It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only implemented for the parent directory of the file to be created. A local unprivileged user who owns another ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/security/cve/CVE-2021-35939 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=1964129 Exploit  Issue Tracking  Third Party Advisory 
https://github.com/rpm-software-management/rpm/commit/96ec957e281220f8e137a2d5eb23b83a6377d556 Patch  Third Party Advisory 
https://github.com/rpm-software-management/rpm/pull/1919 Patch  Third Party Advisory 
https://rpm.org/wiki/Releases/4.18.0 Release Notes  Vendor Advisory 
https://security.gentoo.org/glsa/202210-22 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-59 Improper Link Resolution Before File Access ('Link Following') cwe source acceptance level NIST   Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-35939
NVD Published Date:
08/26/2022
NVD Last Modified:
02/03/2023
Source:
Red Hat, Inc.