CVE Vulnerability

CVE-2021-35938

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.

6.7 /10

CVSS v3.0 : MEDIUM

V3 Legend

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://bugzilla.redhat.com/show_bug.cgi?id=1964114 Issue Tracking Vendor Advisory
https://github.com/rpm-software-management/rpm/pull/1919 Patch Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1157880 Exploit Issue Tracking
https://github.com/rpm-software-management/rpm/commit/25a435e90844ea98fe5eb7bef22c1aecf3a9c033 Patch Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-35938 Vendor Advisory
https://rpm.org/wiki/Releases/4.18.0 Release Notes
https://security.gentoo.org/glsa/202210-22 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:rpm:rpm:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Information

Published : 2022-08-25 08:15

Updated : 2022-11-29 06:06

NVD link : CVE-2021-35938

Mitre link : CVE-2021-35938

Products Affected
No products.
CWE
CWE-59