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USN-3884-1: libarchive vulnerabilities

7 February 2019

Several security issues were fixed in libarchive.

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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.

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Releases

Packages

  • libarchive - Library to read/write archive files

Details

It was discovered that libarchive incorrectly handled certain 7zip files.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2019-1000019, CVE-2019-1000020)

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 18.10
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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