CVE-2021-35939

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.

CVSS v3.0 6.7 MEDIUM

6.7^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/rpm-software-management/rpm/pull/1919	Patch 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://access.redhat.com/security/cve/CVE-2021-35939	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

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Configurations

Configuration 1 (hide)

cpe:2.3:a:rpm:rpm:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

Information

Published : 2022-08-26 09:15

Updated : 2023-02-03 17:16

NVD link : CVE-2021-35939

Mitre link : CVE-2021-35939

JSON object : View

CWE

CWE-59

Improper Link Resolution Before File Access ('Link Following')

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Products Affected

redhat

enterprise_linux

rpm

rpm

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