storebackup: storeBackup.pl in storeBackup through 3.5 relies on the /tmp/storeBackup.lock pathname, which allows symlink attacks...
CVE-2020-7040 is fixed in storebackup on 1 platform, first by storebackup 3.2.1-1+deb8u1build0.18.04.1, released January 21, 2020. It is not reported as exploited. Patch Radar priority: Routine.
storeBackup.pl in storeBackup through 3.5 relies on the /tmp/storeBackup.lock pathname, which allows symlink attacks that possibly lead to privilege escalation. (Local users can also create a plain file named /tmp/storeBackup.lock to block use of storeBackup until an admin manually deletes that file.)
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| storebackup · Ubuntu 18.04.6 LTS (bionic) | 3.2.1-1+deb8u1build0.18.04.1 | storebackup 3.2.1-1+deb8u1build0.18.04.1 | Jan 21, 2020 |
| storebackup · Ubuntu 20.04 LTS (focal) | 3.2.1-1+deb8u1build0.20.04.1 | storebackup 3.2.1-1+deb8u1build0.20.04.1 | Jan 21, 2020 |
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