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CVE-2021-35939

MEDIUM
6.7
CVSS Score
Published: August 26, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 03:57 AM UTC
2 products affected across 2 vendorsEnterprise LinuxRpm

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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.5%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Enterprise Linux· Red Hatrpm
95%
8.0
Rpm· Rpm
95%
v < 4.18
Vendor states this is fixed in 4.18 (unaffected)

References (6)

Third Party Advisory
Source: [email protected]
https://access.redhat.com/security/cve/CVE-2021-35939
ExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1964129
PatchThird Party Advisory
Source: [email protected]
https://github.com/rpm-software-management/rpm/commit/96ec957e281220f8e137a2d5eb23b83a6377d556
PatchThird Party Advisory
Source: [email protected]
https://github.com/rpm-software-management/rpm/pull/1919
Release NotesVendor Advisory
Source: [email protected]
https://rpm.org/wiki/Releases/4.18.0
Vendor AdvisoryThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202210-22

CVSS

6.7MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-59

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