Description
A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials after installing a file. A local unprivileged user could use this flaw to exchange the original file with a symbolic link to a security-critical file and escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
References (7)
Core 7
Core References
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202210-22
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2021-35938
Issue Tracking, Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1964114
Exploit, Issue Tracking, Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1157880
Patch, Third Party Advisory
https://github.com/rpm-software-management/rpm/commit/25a435e90844ea98fe5eb7bef22c1aecf3a9c033
Patch, Third Party Advisory
https://github.com/rpm-software-management/rpm/pull/1919
Release Notes
https://rpm.org/wiki/Releases/4.18.0
Scores
CVSS v3
6.7
EPSS
0.0015
EPSS Percentile
35.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-59
Status
published
Products (5)
fedoraproject/fedora
34
redhat/enterprise_linux
7.0
redhat/enterprise_linux
8.0
redhat/enterprise_linux
9.0
rpm/rpm
< 4.18.0
Published
Aug 25, 2022
Tracked Since
Feb 18, 2026