Home / mailings

PDF

[USN-1451-1] OpenSSL vulnerabilities

Posted on 25 May 2012
Ubuntu Security

--===============4871467721891020108==
Content-Type: multipart/signed; micalg=pgp-sha512;
protocol="application/pgp-signature"; boundary="nFreZHaLTZJo0R7j"
Content-Disposition: inline


--nFreZHaLTZJo0R7j
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

==========================================================================
Ubuntu Security Notice USN-1451-1
May 24, 2012

openssl vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

Applications using OpenSSL in certain situations could be made to
crash or expose sensitive information.

Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools

Details:

Ivan Nestlerode discovered that the Cryptographic Message Syntax
(CMS) and PKCS #7 implementations in OpenSSL returned early if RSA
decryption failed. This could allow an attacker to expose sensitive
information via a Million Message Attack (MMA). (CVE-2012-0884)

It was discovered that an integer underflow was possible when using
TLS 1.1, TLS 1.2, or DTLS with CBC encryption. This could allow a
remote attacker to cause a denial of service. (CVE-2012-2333)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 LTS:
libssl1.0.0 1.0.1-4ubuntu5.2
openssl 1.0.1-4ubuntu5.2

Ubuntu 11.10:
libssl1.0.0 1.0.0e-2ubuntu4.6
openssl 1.0.0e-2ubuntu4.6

Ubuntu 11.04:
libssl0.9.8 0.9.8o-5ubuntu1.7
openssl 0.9.8o-5ubuntu1.7

Ubuntu 10.04 LTS:
libssl0.9.8 0.9.8k-7ubuntu8.13
openssl 0.9.8k-7ubuntu8.13

Ubuntu 8.04 LTS:
libssl0.9.8 0.9.8g-4ubuntu3.19
openssl 0.9.8g-4ubuntu3.19

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1451-1
CVE-2012-0884, CVE-2012-2333

Package Information:
https://launchpad.net/ubuntu/+source/openssl/1.0.1-4ubuntu5.2
https://launchpad.net/ubuntu/+source/openssl/1.0.0e-2ubuntu4.6
https://launchpad.net/ubuntu/+source/openssl/0.9.8o-5ubuntu1.7
https://launchpad.net/ubuntu/+source/openssl/0.9.8k-7ubuntu8.13
https://launchpad.net/ubuntu/+source/openssl/0.9.8g-4ubuntu3.19

 

TOP