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USN-3884-1: libarchive vulnerabilities

7 February 2019

Several security issues were fixed in libarchive.



  • libarchive - Library to read/write archive files


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)

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.