Mandriva Linux Security Advisory : openssl (MDVSA-2014:158)

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


Synopsis :

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

Description :

Multiple vulnerabilities has been discovered and corrected in
openssl :

A flaw in OBJ_obj2txt may cause pretty printing functions such as
X509_name_oneline, X509_name_print_ex et al. to leak some information
from the stack. Applications may be affected if they echo pretty
printing output to the attacker. OpenSSL SSL/TLS clients and servers
themselves are not affected (CVE-2014-3508).

If a multithreaded client connects to a malicious server using a
resumed session and the server sends an ec point format extension it
could write up to 255 bytes to freed memory (CVE-2014-3509).

An attacker can force an error condition which causes openssl to crash
whilst processing DTLS packets due to memory being freed twice. This
can be exploited through a Denial of Service attack (CVE-2014-3505).

An attacker can force openssl to consume large amounts of memory
whilst processing DTLS handshake messages. This can be exploited
through a Denial of Service attack (CVE-2014-3506).

By sending carefully crafted DTLS packets an attacker could cause
openssl to leak memory. This can be exploited through a Denial of
Service attack (CVE-2014-3507).

OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are
subject to a denial of service attack. A malicious server can crash
the client with a NULL pointer dereference (read) by specifying an
anonymous (EC)DH ciphersuite and sending carefully crafted handshake
messages (CVE-2014-3510).

The updated packages have been upgraded to the 1.0.0n version where
these security flaws has been fixed.

See also :

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

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.9
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Mandriva Local Security Checks

Nessus Plugin ID: 77097 ()

Bugtraq ID: 69075
69076
69078
69081
69082
69084

CVE ID: CVE-2014-3505
CVE-2014-3506
CVE-2014-3507
CVE-2014-3508
CVE-2014-3509
CVE-2014-3510

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