CVE-2021-35939 | BDVDB-2026-183285 Detail
RPM
Description#
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.
Impact#
No impact statement in the source data.
Weaknesses#
- CWE-59 Improper Link Resolution Before File Access ('Link Following')
References#
- https://rpm.org/wiki/Releases/4.18.0
- https://github.com/rpm-software-management/rpm/pull/1919
- https://bugzilla.redhat.com/show_bug.cgi?id=1964129
- https://github.com/rpm-software-management/rpm/commit/96ec957e281220f8e137a2d5eb23b83a6377d556
- https://access.redhat.com/security/cve/CVE-2021-35939
- https://security.gentoo.org/glsa/202210-22
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.