unattended-upgrades before 0.86.1 does not properly authenticate packages when the (1) force-confold or (2) force-confnew dpkg options are enabled in the DPkg::Options::* apt configuration, which allows remote man-in-the-middle attackers to upload and execute arbitrary packages via unspecified vectors.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1330
Reference (s):
- http://metadata.ftp-master.debian.org/changelogs//main/u/unattended-upgrades/unattended-upgrades_0.86.1_changelog
- DEBIAN:DSA-3297
- URL: http://www.debian.org/security/2015/dsa-3297
- SECTRACK:1032738
- URL: http://www.securitytracker.com/id/1032738