Ubuntu 5.04 / 5.10 / 6.06 LTS : openssl vulnerability (USN-353-2)

High Nessus Plugin ID 27934


The remote Ubuntu host is missing one or more security-related patches.


USN-353-1 fixed several vulnerabilities in OpenSSL. However, Mark J Cox noticed that the applied patch for CVE-2006-2940 was flawed. This update corrects that patch.

For reference, this is the relevant part of the original advisory :

Certain types of public key could take disproportionate amounts of time to process. The library now limits the maximum key exponent size to avoid Denial of Service attacks. (CVE-2006-2940).

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 packages.

Plugin Details

Severity: High

ID: 27934

File Name: ubuntu_USN-353-2.nasl

Version: $Revision: 1.12 $

Type: local

Agent: unix

Published: 2007/11/10

Modified: 2016/05/27

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libssl-dev, p-cpe:/a:canonical:ubuntu_linux:libssl0.9.7, p-cpe:/a:canonical:ubuntu_linux:libssl0.9.8, p-cpe:/a:canonical:ubuntu_linux:libssl0.9.8-dbg, p-cpe:/a:canonical:ubuntu_linux:openssl, cpe:/o:canonical:ubuntu_linux:5.04, cpe:/o:canonical:ubuntu_linux:5.10, cpe:/o:canonical:ubuntu_linux:6.06:-:lts

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2006/10/04

Reference Information

CVE: CVE-2006-2940

BID: 20247

USN: 353-2

CWE: 399