USN-2981-1: libarchive vulnerabilities

17 May 2016

libarchive could be made to crash or run programs if it opened a specially crafted file.

Releases

Packages

  • libarchive - Library to read/write archive files

Details

It was discovered that libarchive incorrectly handled certain entry-size
values in ZIP archives. A remote attacker could use this issue to cause
libarchive to crash, resulting in a denial of service, or possibly execute
arbitrary code. This issue only applied to Ubuntu 14.04 LTS, Ubuntu 15.10
and Ubuntu 16.04 LTS. (CVE-2016-1541)

It was discovered that libarchive incorrectly handled memory when
processing certain tar files. A remote attacker could use this issue to
cause libarchive to crash, resulting in a denial of service. (CVE number
pending)

Update instructions

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

Ubuntu 16.04
Ubuntu 15.10
Ubuntu 14.04
Ubuntu 12.04

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

References