Scientific Linux Security Update : openssl on SL6.x i386/x86_64

This script is Copyright (C) 2014-2015 Tenable Network Security, Inc.


Synopsis :

The remote Scientific Linux host is missing one or more security
updates.

Description :

It was found that OpenSSL clients and servers could be forced, via a
specially crafted handshake packet, to use weak keying material for
communication. A man-in-the-middle attacker could use this flaw to
decrypt and modify traffic between a client and a server.
(CVE-2014-0224)

Note: In order to exploit this flaw, both the server and the client
must be using a vulnerable version of OpenSSL; the server must be
using OpenSSL version 1.0.1 and above, and the client must be using
any version of OpenSSL. For more information about this flaw, refer
to :

A buffer overflow flaw was found in the way OpenSSL handled invalid
DTLS packet fragments. A remote attacker could possibly use this flaw
to execute arbitrary code on a DTLS client or server. (CVE-2014-0195)

Multiple flaws were found in the way OpenSSL handled read and write
buffers when the SSL_MODE_RELEASE_BUFFERS mode was enabled. A TLS/SSL
client or server using OpenSSL could crash or unexpectedly drop
connections when processing certain SSL traffic. (CVE-2010-5298,
CVE-2014-0198)

A denial of service flaw was found in the way OpenSSL handled certain
DTLS ServerHello requests. A specially crafted DTLS handshake packet
could cause a DTLS client using OpenSSL to crash. (CVE-2014-0221)

A NULL pointer dereference flaw was found in the way OpenSSL performed
anonymous Elliptic Curve Diffie Hellman (ECDH) key exchange. A
specially crafted handshake packet could cause a TLS/SSL client that
has the anonymous ECDH cipher suite enabled to crash. (CVE-2014-3470)

For the update to take effect, all services linked to the OpenSSL
library (such as httpd and other SSL-enabled services) must be
restarted or the system rebooted.

See also :

http://www.nessus.org/u?33892d79

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)
Public Exploit Available : true

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 74350 ()

Bugtraq ID:

CVE ID: CVE-2010-5298
CVE-2014-0195
CVE-2014-0198
CVE-2014-0221
CVE-2014-0224
CVE-2014-3470

Ready to Amp Up Your Nessus Experience?

Get Nessus Professional to scan unlimited IPs, run compliance checks & more

Buy Nessus Professional Now