CVE-2021-35938
- State
- Published
- Severity
- Not scored
- Published
- Aug 25, 2022
- Updated
- Aug 4, 2024
- Reserved
- Jun 29, 2021
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.
Scores
The record has no CVSS score.
Weaknesses
- CWE-59 Improper Link Resolution Before File Access ('Link Following')
Affected Products
| Product | Versions |
|---|---|
RPMn/a |
|
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1964114
- https://bugzilla.suse.com/show_bug.cgi?id=1157880
- https://access.redhat.com/security/cve/CVE-2021-35938
- https://rpm.org/wiki/Releases/4.18.0
- https://github.com/rpm-software-management/rpm/pull/1919
- https://github.com/rpm-software-management/rpm/commit/25a435e90844ea98fe5eb7bef22c1aecf3a9c033
- GLSA-202210-22vendor-advisory
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