Ubuntu 11.10 / 12.04 LTS / 12.10 : apt vulnerability (USN-1762-1)

Medium Nessus Plugin ID 65571


The remote Ubuntu host is missing a security-related patch.


Ansgar Burchardt discovered that APT incorrectly handled InRelease files. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could potentially be used to install altered packages.

This update corrects the issue by disabling InRelease file support completely. Please note that this update breaks third-party repositories that provide only a InRelease file and no separate Release and Release.gpg files. The default Ubuntu repositories do not use InRelease files.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected apt package.

Plugin Details

Severity: Medium

ID: 65571

File Name: ubuntu_USN-1762-1.nasl

Version: $Revision: 1.6 $

Type: local

Agent: unix

Published: 2013/03/15

Modified: 2016/05/25

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:apt, cpe:/o:canonical:ubuntu_linux:11.10, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2013/03/14

Reference Information

CVE: CVE-2013-1051

BID: 58700

OSVDB: 91428

USN: 1762-1