Ubuntu 8.04 LTS / 10.04 LTS / 10.10 / 11.04 : apt vulnerability (USN-1283-1)

Ubuntu Security Notice (C) 2011-2014 Canonical, Inc. / NASL script (C) 2011-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

It was discovered that APT incorrectly handled the Verify-Host
configuration option. If a remote attacker were able to perform a
man-in-the-middle attack, this flaw could potentially be used to steal
repository credentials. This issue only affected Ubuntu 10.04 LTS and
10.10. (CVE-2011-3634)

USN-1215-1 fixed a vulnerability in APT by disabling the apt-key
net-update option. This update re-enables the option with corrected
verification.

It was discovered that the apt-key utility incorrectly verified GPG
keys when downloaded via the net-update option. If a remote attacker
were able to perform a man-in-the-middle attack, this flaw could
potentially be used to install altered packages.

Solution :

Update the affected apt package.

Risk factor :

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

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 56970 ()

Bugtraq ID:

CVE ID: CVE-2011-3634