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centosCentOS ProjectCESA-2014:1053
HistoryAug 13, 2014 - 7:52 p.m.

openssl security update

2014-08-1319:52:24
CentOS Project
lists.centos.org
69
openssl
security update
memory disclosure
crash vulnerabilities
ssl
tls
dtls
x.509 certificates
cve-2014-3508
cve-2014-0221
cve-2014-3505
cve-2014-3506
cve-2014-3510

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

EPSS

0.964

Percentile

99.6%

CentOS Errata and Security Advisory CESA-2014:1053

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL),
Transport Layer Security (TLS), and Datagram Transport Layer Security
(DTLS) protocols, as well as a full-strength, general purpose cryptography
library.

It was discovered that the OBJ_obj2txt() function could fail to properly
NUL-terminate its output. This could possibly cause an application using
OpenSSL functions to format fields of X.509 certificates to disclose
portions of its memory. (CVE-2014-3508)

Multiple flaws were discovered in the way OpenSSL handled DTLS packets.
A remote attacker could use these flaws to cause a DTLS server or client
using OpenSSL to crash or use excessive amounts of memory. (CVE-2014-0221,
CVE-2014-3505, CVE-2014-3506)

A NULL pointer dereference flaw was found in the way OpenSSL performed a
handshake when using the anonymous Diffie-Hellman (DH) key exchange. A
malicious server could cause a DTLS client using OpenSSL to crash if that
client had anonymous DH cipher suites enabled. (CVE-2014-3510)

Red Hat would like to thank the OpenSSL project for reporting
CVE-2014-0221. Upstream acknowledges Imre Rad of Search-Lab as the original
reporter of this issue.

All OpenSSL users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. 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.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2014-August/082649.html

Affected packages:
openssl
openssl-devel
openssl-perl

Upstream details at:
https://access.redhat.com/errata/RHSA-2014:1053

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

EPSS

0.964

Percentile

99.6%