Description
An Insecure Temporary File vulnerability in openSUSE sdbootutil allows local users to pre-create a directory to achieve various effects like:
* gain access to possible private information found in /var/lib/pcrlock.d
* manipulate the data backed up in /tmp/pcrlock.d.bak, therefore violating the integrity of the data should it be restored.
* overwrite protected system files with data from /var/lib/pcrlock.d by placing symlinks to existing files in the directory tree in /tmp/pcrlock.d.bak.
This issue affects sdbootutil: from ? before 5880246d3a02642dc68f5c8cb474bf63cdb56bca.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| openSUSE | sdbootutil | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | sdbootutil | 1+git20260303.90d816d-1.1 | openSUSE-SU-2026:10287-1 |
Advisories 1
- openSUSE-SU-2026:10287-1 sdbootutil-1+git20260303.90d816d-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026