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USN-4508-1: StoreBackup vulnerability

16 September 2020

StoreBackup could be made to stop executing or generate a race condition if it received a lock file in the default location.

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Releases

Packages

  • storebackup - fancy compressing managing checksumming deduplicating hard-linkin

Details

It was discovered that StoreBackup did not properly manage lock files.
A local attacker could use this issue to cause a denial of service or
escalate privileges and run arbitrary code. (CVE-2020-7040)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

In general, a standard system update will make all the necessary changes.

References

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Further reading