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CVE-2021-35938: Invalid Bug ID

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.

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Red Hat Security Advisory 2024-0647-03

Red Hat Security Advisory 2024-0647-03 - An update for rpm is now available for Red Hat Enterprise Linux 8.

CVE-2021-35939: First steps towards fixing the symlink CVEs by pmatilai · Pull Request #1919 · rpm-software-management/rpm

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.

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