CVE-2016-1252 Information

Description

The apt package in Debian jessie before 1.0.9.8.4 in Debian unstable before 1.4~beta2 in Ubuntu 14.04 LTS before 1.0.1ubuntu2.17 in Ubuntu 16.04 LTS before 1.2.15ubuntu0.2 and in Ubuntu 16.10 before 1.3.2ubuntu0.1 allows man-in-the-middle attackers to bypass a repository-signing protection mechanism by leveraging improper error handling when validating InRelease file signatures.

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

http://packetstormsecurity.com/files/140145/apt-Repository-Signing-Bypass.html http://www.ubuntu.com/usn/USN-3156-1 https://bugs.chromium.org/p/project-zero/issues/detail?id=1020 https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1647467 https://www.debian.org/security/2016/dsa-3733 https://www.exploit-db.com/exploits/40916/

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.9