Lucene search

K
freebsdFreeBSD8AFF07EB-1DBD-11E4-B6BA-3C970E169BC2
HistoryAug 06, 2014 - 12:00 a.m.

OpenSSL -- multiple vulnerabilities

2014-08-0600:00:00
vuxml.freebsd.org
18

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.938 High

EPSS

Percentile

99.1%

The OpenSSL Project reports:

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. [CVE-2014-3508]
The issue affects OpenSSL clients and allows a malicious
server to crash the client with a null pointer dereference
(read) by specifying an SRP ciphersuite even though it was
not properly negotiated with the client. [CVE-2014-5139]
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]
A flaw in the OpenSSL SSL/TLS server code causes the
server to negotiate TLS 1.0 instead of higher protocol
versions when the ClientHello message is badly
fragmented. This allows a man-in-the-middle attacker
to force a downgrade to TLS 1.0 even if both the server
and the client support a higher protocol version, by
modifying the client’s TLS records. [CVE-2014-3511]
A malicious client or server can send invalid SRP
parameters and overrun an internal buffer. Only
applications which are explicitly set up for SRP
use are affected. [CVE-2014-3512]

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.938 High

EPSS

Percentile

99.1%