Vulnerabilities > CVE-2021-35939
Attack vector
LOCAL Attack complexity
LOW Privileges required
HIGH Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
References
- https://access.redhat.com/security/cve/CVE-2021-35939
- https://access.redhat.com/security/cve/CVE-2021-35939
- https://bugzilla.redhat.com/show_bug.cgi?id=1964129
- https://bugzilla.redhat.com/show_bug.cgi?id=1964129
- https://github.com/rpm-software-management/rpm/commit/96ec957e281220f8e137a2d5eb23b83a6377d556
- https://github.com/rpm-software-management/rpm/commit/96ec957e281220f8e137a2d5eb23b83a6377d556
- https://github.com/rpm-software-management/rpm/pull/1919
- https://github.com/rpm-software-management/rpm/pull/1919
- https://rpm.org/wiki/Releases/4.18.0
- https://rpm.org/wiki/Releases/4.18.0
- https://security.gentoo.org/glsa/202210-22
- https://security.gentoo.org/glsa/202210-22