CVE-2021-35939

CVSS V2 None CVSS V3 High 7.8
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.
Overview
  • CVE ID
  • CVE-2021-35939
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-08-26T16:15:08
  • Last Modified Date
  • 2023-02-04T01:16:51
Weakness Enumerations
CWE URL
CWE-59 http://cwe.mitre.org/data/definitions/59.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:rpm:rpm:*:*:*:*:*:*:*:* 1 OR 4.18
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* 1 OR
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-35939
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35939
History
Created Old Value New Value Data Type Notes
2022-08-26 17:00:10 Added to TrackCVE
2022-12-06 14:35:02 2022-11-29T17:18:34 CVE Modified Date updated
2023-02-04 02:12:54 2023-02-04T01:16:51 CVE Modified Date updated
2023-02-04 02:12:54 Undergoing Analysis Analyzed Vulnerability Status updated