SUSE SLED12 / SLES12 Security Update : openssl (SUSE-SU-2015:2237-1)

This script is Copyright (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

The remote SUSE host is missing one or more security updates.

Description :

This update for openssl fixes the following issues :

Security fixes :

- CVE-2015-3194: The signature verification routines will
crash with a NULL pointer dereference if presented with
an ASN.1 signature using the RSA PSS algorithm and
absent mask generation function parameter. Since these
routines are used to verify certificate signature
algorithms this can be used to crash any certificate
verification operation and exploited in a DoS attack.
Any application which performs certificate verification
is vulnerable including OpenSSL clients and servers
which enable client authentication. (bsc#957815)

- CVE-2015-3195: When presented with a malformed
X509_ATTRIBUTE structure OpenSSL would leak memory. This
structure is used by the PKCS#7 and CMS routines so any
application which reads PKCS#7 or CMS data from
untrusted sources is affected. SSL/TLS is not affected.
(bsc#957812)

- CVE-2015-3196: If PSK identity hints are received by a
multi-threaded client then the values were wrongly
updated in the parent SSL_CTX structure. This could
result in a race condition potentially leading to a
double free of the identify hint data. (bsc#957813)

Non security bugs fixed :

- Clear the error after setting non-fips mode (bsc#947104)

- Improve S/390 performance on IBM z196 and z13
(bsc#954256)

- Add support for 'ciphers' providing no encryption
(bsc#937085)

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

See also :

https://bugzilla.suse.com/937085
https://bugzilla.suse.com/947104
https://bugzilla.suse.com/954256
https://bugzilla.suse.com/957812
https://bugzilla.suse.com/957813
https://bugzilla.suse.com/957815
https://www.suse.com/security/cve/CVE-2015-3194.html
https://www.suse.com/security/cve/CVE-2015-3195.html
https://www.suse.com/security/cve/CVE-2015-3196.html
http://www.nessus.org/u?4e8d9bde

Solution :

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Software Development Kit 12 :

zypper in -t patch SUSE-SLE-SDK-12-2015-958=1

SUSE Linux Enterprise Server 12 :

zypper in -t patch SUSE-SLE-SERVER-12-2015-958=1

SUSE Linux Enterprise Desktop 12 :

zypper in -t patch SUSE-SLE-DESKTOP-12-2015-958=1

To bring your system up-to-date, use 'zypper patch'.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 3.7
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: SuSE Local Security Checks

Nessus Plugin ID: 87318 ()

Bugtraq ID:

CVE ID: CVE-2015-3194
CVE-2015-3195
CVE-2015-3196

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