AIX OpenSSL Advisory : openssl_advisory10.asc

High Nessus Plugin ID 77603

Synopsis

The remote AIX host has a version of OpenSSL installed that is affected by multiple vulnerabilities.

Description

The version of OpenSSL installed on the remote host is affected by the following vulnerabilities :

- A memory double-free error exists related to handling DTLS packets that allows denial of service attacks.
(CVE-2014-3505)

- An unspecified error exists related to handling DTLS handshake messages that allows denial of service attacks due to large amounts of memory being consumed.
(CVE-2014-3506)

- A memory leak error exists related to handling specially crafted DTLS packets that allows denial of service attacks. (CVE-2014-3507)

- An error exists related to 'OBJ_obj2txt' and the pretty printing 'X509_name_*' functions which leak stack data, resulting in an information disclosure. (CVE-2014-3508)

- An error exists related to 'ec point format extension' handling and multithreaded clients that allows freed memory to be overwritten during a resumed session.
(CVE-2014-3509)

- A NULL pointer dereference error exists related to handling anonymous ECDH cipher suites and crafted handshake messages that allow denial of service attacks against clients. (CVE-2014-3510)

- An error exists related to handling fragmented 'ClientHello' messages that could allow a man-in-the-middle attacker to force usage of TLS 1.0 regardless of higher protocol levels being supported by both the server and the client. (CVE-2014-3511)

- A buffer overflow error exists related to handling Secure Remote Password protocol (SRP) parameters having unspecified impact. (CVE-2014-3512)

- A NULL pointer dereference error exists related to handling Secure Remote Password protocol (SRP) that allows a malicious server to crash a client, resulting in a denial of service. (CVE-2014-5139)

Solution

A fix is available and can be downloaded from the AIX website.

IMPORTANT : If possible, it is recommended that a mksysb backup of the system be created. Verify that it is both bootable and readable before proceeding.

See Also

http://aix.software.ibm.com/aix/efixes/security/openssl_advisory10.asc

https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=aixbp

https://www.openssl.org/news/secadv/20140806.txt

Plugin Details

Severity: High

ID: 77603

File Name: aix_openssl_advisory10.nasl

Version: $Revision: 1.5 $

Type: local

Published: 2014/09/10

Modified: 2016/05/04

Dependencies: 12634

Risk Information

Risk Factor: High

CVSSv2

Base Score: 9.3

Temporal Score: 6.9

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

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

Vulnerability Information

CPE: cpe:/o:ibm:aix, cpe:/a:openssl:openssl

Required KB Items: Host/AIX/lslpp, Host/local_checks_enabled, Host/AIX/version

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2014/09/05

Vulnerability Publication Date: 2014/08/06

Reference Information

CVE: CVE-2014-3505, CVE-2014-3506, CVE-2014-3507, CVE-2014-3508, CVE-2014-3509, CVE-2014-3510, CVE-2014-3511, CVE-2014-3512, CVE-2014-5139

BID: 69075, 69076, 69077, 69078, 69079, 69081, 69082, 69083, 69084

OSVDB: 109891, 109892, 109893, 109894, 109895, 109896, 109897, 109898, 109902