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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a RPM
Fixed in rpm v4.18.0affected
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 ↗
- https://security.gentoo.org/glsa/202210-22 ↗