Ubuntu 8.04 LTS / 10.04 LTS / 11.04 / 11.10 / 12.04 LTS : apt vulnerability (USN-1477-1)

Ubuntu Security Notice (C) 2012-2013 Canonical, Inc. / NASL script (C) 2012-2013 Tenable Network Security, Inc.


Synopsis :

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

Description :

Georgi Guninski discovered that APT did not properly validate imported
keyrings via apt-key net-update. USN-1475-1 added additional
verification for imported keyrings, but it was insufficient. 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 the net-update option
completely. A future update will re-enable the option with corrected
verification.

Solution :

Update the affected apt package.

Risk factor :

Low / CVSS Base Score : 2.6
(CVSS2#AV:N/AC:H/Au:N/C:N/I:P/A:N)

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 59554 ()

Bugtraq ID:

CVE ID: CVE-2012-0954