A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.
| Link | Tags |
|---|---|
| https://rpm.org/wiki/Releases/4.18.0 | release notes |
| https://bugzilla.redhat.com/show_bug.cgi?id=1964125 | issue tracking patch vendor advisory |
| https://access.redhat.com/security/cve/CVE-2021-35937 | vendor advisory |
| https://www.usenix.org/legacy/event/sec05/tech/full_papers/borisov/borisov.pdf | exploit third party advisory technical description |
| https://security.gentoo.org/glsa/202210-22 | third party advisory vendor advisory |