Ubuntu 4.10 / 5.04 / 5.10 : gnupg vulnerability (USN-252-1)

Ubuntu Security Notice (C) 2006-2016 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.

Synopsis :

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

Description :

Tavis Ormandy discovered a potential weakness in the signature
verification of gnupg. gpgv and gpg --verify returned a successful
exit code even if the checked file did not have any signature at all.
The recommended way of checking the result is to evaluate the status
messages, but some third-party applications might just check the exit
code for determining whether or not a signature is valid. These
applications could be tricked into erroneously reporting a valid

Please note that this does not affect the Ubuntu package signature

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.

Solution :

Update the affected gnupg package.

Risk factor :

Medium / CVSS Base Score : 4.6

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 21071 ()

Bugtraq ID:

CVE ID: CVE-2006-0455

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